Scientific papers and publications:

1) Xu, W., Wang, Y.: Two lens-prism correctors for prime focus with a 2-degree field, Proceedings of ESO Conference on Progress in Telescope and Instrumentation Technologies, 1992

2) Xu, W., Wang, Y.: Three types of 2-degree field compensating atmospheric dispersion corrector for prime focus, ACTA ASTRONOMICA SINICA, Vol.34, No.2

3) Xu, W.: An application of AUTOCAD graphic package to the optical design, Astronomical Instrument and Technology, 1995.

4) Xu, W.: The diffraction energy distribution of an optical system with two segmented mirrors, ACTA ASTROPHYSICA, Vol.17, No.1

5) Zhu, Y., Xu, W.: Low dispersion spectrograph for LAMOST, Astronomical Instrument and Technology, 1997.

6) Xu, W.: A catadioptric flat CCD camera with quick f-ratio and wide field, ACTA OPTICA SINICA, Vol.19, No.12

7) Mandel, H., Appenzeller, I., Seifert, W., Xu, W., Herbst, T., Lenzen, R., Thatte, N., Lemke, R., Bomans, D., Nicklas, H., Weiser, P.: LUCIFER - LBT NIR spectroscopic Utility with Camera and Integral-Field Unit for Extragalactic Research. In: A.S.P. Conference Series ``Optical and Infrared Spectroscopy of Circumstellar Matter'', Tautenburg, 321, 1999

8) Mandel, H., Appenzeller, I., Seifert, W., Xu, W., Herbst, T., Lenzen, R., Thatte, N., Eisenhauer, F., Lemke, R., Bomans, D., Luks, T., Weiser, P., Spörl, C.: LUCIFER - a NIR spectrograph and imager for the LBT. AG Abstract Series 15, 144, 1999.

9) Mandel, H., Appenzeller, I., Seifert, W., Xu, W., Herbst, T., Lenzen, R., Thatte, N., Eisenhauer, F., Lemke, R., Bomans, D., Luks, T., Weiser, P., Spörl, C.: LUCIFER - a NIR spectrograph and imager for the LBT. In: Proc. ``Galactic Disks 99'', Heidelberg, 1999

10) Seifert, W., Appenzeller, I., Fürtig, W., Stahl, O., Sutorius, E., Xu, W., Gässler, W., Häfner, R., Hess, H.-J., Hummel, W., Mantel, K.-H., Meisl, W., Muschielok, B., Tarantik, K., Nicklas, H., Rupprecht, G., Cumani, C., Szeifert, T., Spyromilio, J.: Commissioning of the FORS instruments at the ESO VLT. In: SPIE Proc. Vol. 4008 ``Optical and IR Telescope Instrumentation and Detectors'', München, eds. Iye, Moorwood, 96, 2000

11) Zhu, Y., Xu, W.: Low dispersion spectrograph for LAMOST. In: SPIE Proc. Vol. 4008 ``Optical and IR Telescope Instrumentation and Detectors'', München, eds. Iye, Moorwood, 767, 2000

12) Mandel, H., Appenzeller, I., Bomans, D., Eisenhauer, F., Grimm, B., Herbst, T. M.; Hofmann, R., Lehmitz, M.; Lemke, R., Lehnert, M., Lenzen, R., Luks, T., Mohr, R., Seifert, W., Thatte, N., Weiser, P., Xu, W.: LUCIFER: a NIR spectrograph and imager for the LBT. In: SPIE Proc. Vol. 4008 ``Optical and IR Telescope Instrumentation and Detectors'', München, eds. Iye, Moorwood, 767, 2000

13) Mandel, H.; Appenzeller, I.; Bomans, D.; Eisenhauer, F.; Grimm, B.; Herbst, T. M.; Hofman, R.; Lehmitz, M.; Lemke, R.; Lehnert, M.; Lenzen, R.; Luks, T.; Mohr, R.; Seifert, W.; Seltmann, A.; Thatte, N.; Weiser, P.; Xu, W.: LUCIFER - A NIR Spectrograph and Imager for the LBT. In: Science with the Large Binocular Telescope. Proceedings of a Workshop held July 24-29, 2000, at Ringberg Castle, Bavaria. Sponsored by the Max-Planck Society and the LBT Beteiligungsgeschellschaft. Edited by Tom Herbst. ISBN 3-00-008071- 6. Printed by Neumann Druck, 2001, p.177

14) Mandel, H.; Appenzeller, I.; Lehmitz, M.; Seifert, W.; Seltmann, A.; Xu, W.; Bitzenberger, P.; Grimm, B.; Laun, W.; Lenzen, R.; Rohloff, R.-R.; Herbst, T.: LUCIFER - a NIR Spectrograph and Imager for the LBT Design Status Report July 2001. In: Astronomische Gesellschaft Abstract Series, Vol. 18. Abstracts of Contributed Talks and Posters presented at the Annual Scientific Meeting of the Astronomische Gesellschaft at the Joint European and National Meeting JENAM 2001 of the European Astronomical Society and the Astronomische Gesellschaft at Munich, September 10-15, 2001, abstract #P216

15) Cui, X., Yuan, L., Xu, W., Yao, Zh., Zhou, W.: The Shack-Hartmann Test of the Optical System of 2.16m Telescope. In: Proceedings of 2.16m Telescope Project. Edited by Dingqiang Su. ISBN 7-5046-3201-5. Printed by Chinese Science and technology, 11.2001, p.103

16) Herbst, Tom; Ragazzoni, Roberto; Andersen, David; Boehnhardt, H.; Bizenberger, Peter; Eckart, Andreas; Gaessler, W.; Rix, Hans-Walter; Rohloff, Ralf-Rainer; Salinari, Piero; Soci, R.; Straubmeier, Christian; Xu, W.: LINC-NIRVANA: a Fizeau beam combiner for the large binocular telescope. In: SPIE Proc. Vol. 4838 “Interferometry for Optical Astronomy II”. Edited by Wesley A. Traub, pp. 456-465 (2003).

17) Xu, Wenli; Seifert, Walter: Optical glasses with high NIR transmission. In: SPIE Proc. Vol. 4842 “Specialized Optical Developments in Astronomy”, edited by Atad-Ettedgui, Eli; D'Odorico, Sandro, pp. 402-408 (2003).

18) Seifert, W., Appenzeller, I., Baumeister, H., Bizenberger, P., Bomans, D., Dettmar, R., Grimm, B., Herbst, T., Hofmann, R., Juette, M., Laun, W., Lehmitz, M., Lemke, R., Lenzen, R., Mandel, H., Polsterer, K., Rohloff, R., Schuetze, A., Seltmann, A., Thatte, N. A., Weiser, P., Xu, W., "LUCIFER: a multimode NIR instrument for the LBT" in Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, edited by Masanori Iye, Alan F. M. Moorwood, Proceedings of SPIE Vol. 4841 (SPIE, Bellingham, WA 2003) pp. 962-973.

19) Ragazzoni, Roberto; Herbst, Tom M.; Gaessler, Wolfgang; Andersen, David; Arcidiacono, Carmelo;Baruffolo, Andrea; Baumeister, Harald; Bizenberger, Peter; Diolaiti, Emiliano; Esposito, Simone; Farinato, Jacopo; Rix, Hans W.; Rohloff, Ralf-Rainer; Riccardi, Armando; Salinari, Piero; Soci, Roberto; Vernet-Viard, Elise; Xu, Wenli: A visible MCAO channel for NIRVANA at the LBT. In: SPIE Proc. Vol. 4839 “Adaptive Optical System Technologies II”, edited by Wizinowich, Peter L.; Bonaccini, Domenico, pp. 536-543 (2003).

20) Butler, David J.; Marchetti, Enrico; Bähr, Jochen; Xu, Wenli; Hippler, Stefan; Kasper, Markus E.; Conan, Rodolphe: Phase screens for astronomical multi-conjugate adaptive optics: application to MAPS. In: SPIE Proc. Vol. 4839 “Adaptive Optical System Technologies II”, edited by Wizinowich, Peter L.; Bonaccini, Domenico, pp. 623-634 (2003).

21) Ragazzoni, R., Soci, R., Arcidiacono, C., Baruffolo, A., Baumeister, H., Bisson, R., Bohnhardt, H., Brindisi, A., Coyne, J., Diolaiti, E., Farinato, J., Gassler, W., Herbst, T., Lombini, M., Meneghini, G., Mohr, L., Rohloff, R., Vernet-Viard, E., Weiss, R., Xompero, M., Xu, W., "Layer-oriented MCAO projects and experiments: an update" in Astronomical Adaptive Optics Systems and Applications, edited by Robert K. Tyson, Michael Lloyd-Hart, Proceedings of SPIE Vol. 5169 (SPIE, Bellingham, WA 2003) pp. 181-189.

22) Gassler, Wolfgang; Herbst, Thomas M.; Ragazzoni, Roberto; Andersen, David R.; Arcidiacono, Carmelo; Baumeister, Harald; Beckmann, Udo; Bertram, Thomas; Bizenberger, Peter; Bohnhardt, Hermann; Diolaiti, Emiliano; Eckart, Andreas; Farinato, Jacopo; Ligori, Sebastiano; Rix, Hans-Walter; Rohloff, Ralf-Rainer; Salinari, Piero; Soci, Roberto; Straubmeier, Christian; Vernet-Viard, Elise; Weigelt, Gerd; Weiss, Robert; Xu, Wenli: LINC-NIRVANA: first attempt of an instrument for a 23-m-class telescope. Second Backaskog Workshop on Extremely Large Telescopes. Edited by Ardeberg, Arne L.; Andersen, Torben. Proceedings of the SPIE, Volume 5382, pp. 742-747 (2004).

23) Farinato, J., Ragazzoni, R., Arcidiacono, C., Paolo, B., Baruffolo, A., Baumeister, H., Bisson, R., Bohnhardt, H., Brindisi, A., Brynnel, J., Cecconi, M., Coyne, J., Delabre, B., Diolaiti, E., Donaldson, R., Fedrigo, E., Franza, F., Gassler, W., Ghedina, A., Herbst, T. M., Hubin, N. N., Kellner, S., Kolb, J., Lizon, J., Lombini, M., Marchetti, E., Meneghini, G., Mohr, L., Reiss, R., Rohloff, R., Soci, R., Vernet, E., Weiss, R., Xompero, M., Xu, W., "Layer-Oriented on paper, laboratory, and soon on the sky" in Second Backaskog Workshop on Extremely Large Telescopes, edited by Arne L. Ardeberg, Torben Andersen, Proceedings of SPIE Vol. 5382 (SPIE, Bellingham, WA 2004) pp. 578-587.

24) Egner, Sebastian E.; Gaessler, Wolfgang; Herbst, Tom M.; Ragazzoni, Roberto; Stuik, Remko; Andersen, D. A.; Arcidiacono, C.; Baumeister, H.; Beckmann, U.; Behrend, J.; Bertram, T.; Bizenberger, P.; Boehnhardt, H.; Diolaiti, E.; Driebe, T.; Eckhardt, A.; Farinato, J.; Kuerster, M.; Laun, W.; Ligori, S.; Naranjo, Vianak; Nußbaum, E.; Rix, H.-W.; Rohloff, R.-R.; Salinari, Piero; Soci, R.; Straubmeier, C.; Vernet-Viard, E.; Weigelt, Gerd P.; Weiss, R.; Xu, W. : LINC-NIRVANA: the single arm MCAO experiment. Advancements in Adaptive Optics. Edited by Domenico B. Calia, Brent L. Ellerbroek, and Roberto Ragazzoni. Proceedings of the SPIE, Volume 5490, pp. 924-933 (2004).

25) Soci, R., Ragazzoni, R., Herbst, T. M., Farinato, J., Gaessler, W., Baumeister, H., Rohloff, R., Diolaiti, E., Xu, W., Andersen, D. R., Egner, S. E., Arcidiacono, C., Lombini, M., Ebert, M., Boehm, A., Muench, N., Xompero, M., "LINC-NIRVANA: mechanical challanges of the MCAO wavefront sensor" in Advancements in Adaptive Optics, edited by Domenico Bonaccini Calia, Brent L. Ellerbroek, Roberto Ragazzoni, Proceedings of SPIE Vol. 5490 (SPIE, Bellingham, WA 2004) pp. 1286-1295.

26) Gaessler, Wolfgang; Ragazzoni, Roberto; Herbst, Thomas M.; Andersen, David R.; Arcidiacono, Carmelo; Baumeister, Harald; Beckmann, Udo; Behrend, Jan; Bertram, Thomas; Bizenberger, Peter; Bohnhardt, Hermann; Briegel, F.; Diolaiti, Emiliano; Driebe, Thomas M.; Eckhardt, A.; Egner, Sebastian E.; Farinato, Jacopo; Heininger, Matthias; Kürster, M.; Laun, Werner; Ligori, Sebastiano; Naranjo, Vianak; Nussbaum, Edmund; Rix, Hans-Walter; Rohloff, Ralf-Rainer; Salinari, Piero; Soci, Roberto; Storz, Clemens; Straubmeier, Christian; Vernet-Viard, Elise; Weigelt, Gerd P.; Weiss, Robert; Xu, Wenli: LINC-NIRVANA: how to get a 23-m wavefront nearly flat. Advancements in Adaptive Optics. Edited by Domenico B. Calia, Brent L. Ellerbroek, and Roberto Ragazzoni. Proceedings of the SPIE, Volume 5490, pp. 527-534 (2004).

27) Mandel, H., Appenzeller, I., Seifert, W., Baumeister, H., Bizenberger, P., Dettmar, R., Gemperlein, H., Grimm, B., Herbst, T. M., Hofmann, R., Jutte, M., Laun, W., Lehmitz, M., Ligori, S., Lenzen, R., Polsterer, K., Rohloff, R., Schuetze, A., Seltmann, A., Weiser, P., Weisz, H., Xu, W., "LUCIFER status report, summer 2004" in Ground-based Instrumentation for Astronomy, edited by Alan F. M. Moorwood, Masanori Iye, Proceedings of SPIE Vol. 5492 (SPIE, Bellingham, WA 2004) pp. 1208-1217.

28) Gaessler, W.; Arcidiacono, C.; Egner, S.; Herbst, T. M.; Andersen, D.; Baumeister, H.; Bizenberger, P.; Boehnhardt, H.; Briegel, F.; Kuerster, M.; Laun, W.; Mohr, L.; Grimm, B.; Rix, H.-W.; Rohloff, R.-R.; Soci, R.; Storz, C.; Xu, W.; Ragazzoni, R.; Salinari, P.; Diolaiti, E.; Farinato, J.; Carbillet, M.; Schreiber, L.; Eckart, A.; Bertram, T.; Straubmeier, C.; Wang, Y.; Zealouk, L.; Weigelt, G.; Beckmann, U.; Behrend, J.; Driebe, T.; Heininger, M.; Hofmann, K.-H.; Nußbaum, E.; Schertel, D.; Masciadri, E.: LINC-NIRVANA: MCAO toward Extremely Large Telescopes. Comptes Rendus - Physique, Volume 6, Issue 10, p. 1129-1138 (2005).

29) P. Bizenberger; E. Diolaiti; S. Egner; T. M. Herbst; R. Ragazzoni; D. Reymann; W. Xu: LINC-NIRVANA: optical design of an interferometric imaging camera. Ground-based and Airborne Instrumentation for Astronomy, edited by Ian S. McLean; Masanori Iye, Proceedings of the SPIE, Vol. 6269. (2006)

30) Harald Nicklas; Walter Seifert; Wenli Xu; Denni Hofmann; Christof Köhler; Magali Loupias: MUSE: feeding and mounting 24 spectrographs. Ground-based and Airborne Instrumentation for Astronomy II, edited by Ian S. McLean; Mark M. Casali, Proceedings of the SPIE, Vol. 7014. (2008)

31) A. Quirrenbach, P. J. Amado, H. Mandel, J. A. Caballero, I. Ribas, A. Reiners, R. Mundt, M. Abril, C. Afonso, J. L. Bean, V. J. S. Bejar, S. Becerril, A. Boehm, C. Cardenas, A. Claret, J. Colome, L. P. Costillo, S. Dreizler, M. Fernandez, X. Francisco, R. Garrido, J. I. Gonzalez Hernandez, E. W. Guenther, J. Gutierrez-Soto, V. Joergens, A. P. Hatzes, T. Henning, E. Herrero, M. Kurster, W. Laun, R. Lenzen, U. Mall, E. L. Martin, S. Martin-Ruiz, D. Montes, J. C. Morales, R. Morales Munoz, A. Moya, V. Naranjo, O. Rabaza, A. Ramon, R. Rebolo, S. Reffert, F. Rodler, E. Rodriguez, A. Rodriguez Trinidad, R.-R. Rohloff, M. A. Sanchez Carrasco, C. Schmidt, W. Seifert, J. Setiawan, O. Stahl, J. C. Suarez, G. Wiedemann, C. del Burgo, D. Galadi, E. Sanchez-Blanco, W. Xu: CARMENES: Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph. Astronomical Society of the Pacific Conference Series, "Pathways towards habitable planets", eds. V. Coude du Foresto, D. M. Gelino & I. Ribas, 14-18 Sep 2009

32) Köhler, C., Nicklas, H. E., Xu, W., "Analyzing the MUSE opto-mechanics serving as an optical bench in 3D space" in Ground-based and Airborne Instrumentation for Astronomy III, edited by Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Proceedings of SPIE Vol. 7735 (SPIE, Bellingham, WA 2010) 77354P.

33) Quirrenbach, A., Amado, P. J., Mandel, H., Caballero, J. A., Mundt, R., Ribas, I., Reiners, A., Abril, M., Aceituno, J., Afonso, C., Barrado y Navascues, D., Bean, J. L., Béjar, V. J. S., Becerril, S., Böhm, A., Cárdenas, M. C., Claret, A., Colomé, J., Costillo, L. P., Dreizler, S., Fernández, M., Francisco, X., Galadí, D., Garrido, R., González Hernández, J. I., Guàrdia, J., Guenther, E. W., Gutiérrez-Soto, F., Joergens, V., Hatzes, A. P., Helmling, J., Henning, T., Herrero, E., Kürster, M., Laun, W., Lenzen, R., Mall, U., Martin, E. L., Martín-Ruiz, S., Mirabet, E., Montes, D., Morales, J. C., Morales Muñoz, R., Moya, A., Naranjo, V., Rabaza, O., Ramón, A., Rebolo, R., Reffert, S., Rodler, F., Rodríguez, E., Rodríguez Trinidad, A., Rohloff, R. R., Sánchez Carrasco, M. A., Schmidt, C., Seifert, W., Setiawan, J., Solano, E., Stahl, O., Storz, C., Suárez, J. C., Thiele, U., Wagner, K., Wiedemann, G., Zapatero Osorio, M. R., del Burgo, C., Sánchez-Blanco, E., Xu, W., "CARMENES: Calar Alto high-resolution search for M dwarfs with exo-earths with a near-infrared Echelle spectrograph" in Ground-based and Airborne Instrumentation for Astronomy III, edited by Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Proceedings of SPIE Vol. 7735 (SPIE, Bellingham, WA 2010) 773513.