Althoff, R.; Reitmaier, S.; Schmidt, W.; Zibrowius, B.; Unger, K. K.; Schüth, F. The Synthesis of Zeolites from Dry Powders. Studies in Surface Science and Catalysis 1995, 98, 36–37.

Reichert, H.; Schmidt, W.; Grillet, Y.; Llewellyn , P.; Rouquerol , J.; Unger. Investigation on the Adsorption of N₂ Ar, CO and CH₄ on Aluminophosphates. Studies in Surface Science and Catalysis 1994, 87, 517–524.

Zibrowius, B.; Anderson, M. W.; Schmidt, W.; Schüth, F.; Aliev, A. E.; Harris, K. D. M. Aspects of the Characterization of Cloverite by Solid-State N.m.r. Techniques. Zeolites 1993, 13, 607–610.

Gügel, A.; Müllen, K.; Reichert, H.; Schmidt, W.; Schön, G.; Schüth, F.; Spiekermann, J.; Titman, J.; Unger, K. The Incorporation of C₆₀ in Molecular Sieves. Angewandte Chemie International Edition 1993, 32, 556–557.

Schmidt, W.; Schüth, F.; Reichert, H.; Unger, K.; Zibrowius, B. VPI-5 and Related Aluminophosphates: Preparation and Thermal Stability. Zeolites 1992, 12, 2–8.

Spichtinger, R.; Kanz-Reuschel, B.; Wallau, M.; Schüth, F.; Schmidt, W.; Unger, K. K. Zeolithe, Maßgeschneiderte Synthetische Molekularsiebe für Neue Anwendungen in Chemie. Universität Mainz: Forschungsmagazin 1991, 2, 42–46.

Schmidt, W.; Schüth, F.; Weidenthaler, C. Diffraction and Spectroscopy of Porous Solids. In Comprehensive Inorganic Chemistry II (Second Edition). From Elements to Applications; Volume 5: Porous Materials and Nanomaterials; Reedijk, J., Poeppelmeier, K., Eds.; Reedijk, J., Poeppelmeier, K., Series Eds.; Elsevier: Amsterdam, 2013; Vol. Volume 5, pp 1–24.

Schmidt, W. Synthetic Inorganic Ion Exchange. In Ion Exchange Technology I; Inamuddin, Luqman, M., Eds.; Inamuddin, Luqman, M., Series Eds.; Springer, 2012; Vol. 1, pp 277–298.

Schmidt, W. Titanium-Based Nanoporous Materials. In Ordered Porous Solids; Valtchev, V., Mintova, S., Tsapatsis, M., Eds.; Valtchev, V., Mintova, S., Tsapatsis, M., Series Eds.; Elsevier: Amsterdam, 2009; pp 51–75.

Rumplecker, A.; Zibrowius, B.; Schmidt, W.; Yang, C.-M.; Schüth, F. Evolution of Mesoporosity and Microporosity of SBA-15 during a Treatment with Sulfuric Acid. In Recent Progress in Mesostructured Materials; Zhao, D., Qiu, S., Tang, Y., Yu, C., Eds.; Zhao, D., Qiu, S., Tang, Y., Yu, C., Series Eds.; Studies in Surface Science and Catalysis; Elsevier: Amsterdam, 2007; pp 195–198.

Schmidt, W. Microporous and Mesoporous Catalysts. In Surface and Nanomolecular Catalysis; Richards, R., Ed.; Richards, R., Series ed.; CRC/Taylor & Francis: Boca Raton, 2006; pp 95–139.

Palkovits, R.; Ilhan, Y.; Schmidt, W.; Yang, C.-M.; Erdem-Sentalar, A.; Schüth, F. Beckmann Rearrangement on Microporous and Mesoporous Silica. In Molecular Sieves: From Basic Research to Industrial Applications, Studies in Surface Science and Catalalysis; Cejka, J., Ed.; Cejka, J., Series ed.; Studies in Surface Science and Catalysis; Elsevier: Amsterdam, 2005; Vol. 158, pp 1255–1262.

Schmidt, W. Synthetische Silicate. In Chemische Technology (Winnacker-Küchler); Dittmeyer, R., Keim, W., Kreysa, G., Oberholz, A., Eds.; Dittmeyer, R., Keim, W., Kreysa, G., Oberholz, A., Series Eds.; Chemische Technology (Winnacker-Küchler); Wiley-VCH: Weinheim, 2005; pp 849–850.

Schmidt, W. Synthetische Zeolithe. In Chemische Technology (Winnacker-Küchler); Dittmeyer, R., Keim, W., Kreysa, G., Oberholz, A., Eds.; Dittmeyer, R., Keim, W., Kreysa, G., Oberholz, A., Series Eds.; Chemische Technology (Winnacker-Küchler); Wiley-VCH: Weinheim, 2005; pp 834–849.

Ågren, P.; Thomson, S.; Ilhan, Y.; Zibrowius, B.; Schmidt, W.; Schüth, F. Chemical Linking of MFI-Type Colloidal Zeolite Crystals. In Impact of Zeolites and other Porous Materials on the New Technologies at the Beginning of the New Millenium, Studies in Surface Science and Catalysis; Aiello, R., Testa, F., Giordano, G., Eds.; Aiello, R., Testa, F., Giordano, G., Series Eds.; Elsevier: amsterdam, 2002; pp 159–166.

Schmidt, W. Positron Annihilation Spectroscopy. In Handbook of Porous Solids; Schüth, F., Sing, K. S. W., Weitkamp, J., Eds.; Schüth, F., Sing, K. S. W., Weitkamp, J., Series Eds.; Wiley-VCH: Weinheim, 2002; Vol. 1, pp 506–532.

Schmidt, W. Application of Microporous Materials as Ion-Exchangers. In Handbook of Porous Solids; Schüth, F., Sing, K. S. W., Weitkamp, J., Eds.; Schüth, F., Sing, K. S. W., Weitkamp, J., Series Eds.; Wiley-VCH: Weinheim, 2002; Vol. 2, pp 1058–1097.

Schwickardi, M.; Johann, T.; Schmidt, W.; Busch, O.; Schüth, F. High Surface Area Metal Oxides from Matrix Assisted Preparation in Activated Carbons. In Impact of Zeolites and other Porous Materials on the New Technologies at the Beginning of the New Millenium, Studies in Surface Science and Catalysis; Gaigneaux, E., De Vos, D. E., Grange, P., Jacobs, P. A., Martens, J. A., Ruiz, P., Poncelet, G., Eds.; Gaigneaux, E., De Vos, D. E., Grange, P., Jacobs, P. A., Martens, J. A., Ruiz, P., Poncelet, G., Series Eds.; Elsevier: Amsterdam, 2002; pp 93–100.

Schmidt, W.; Toktarev, A. V.; Schüth, F.; Ione, K. G.; Unger, K. 02-P-23 - The Influence of Different Silica Sources on the Crystallization Kinetics of Zeolite Beta; Studies in Surface Science and Catalysis; Elsevier: Amsterdam, 2001; Vol. 135, p 190.

Kestenbaum, H.; Lange de Oliveira, A.; Schmidt, W.; Schüth, F.; Ehrfeld, W.; Gebauer, K.; Löwe, H.; Richter, T. Synthesis of Ethylene Oxide in a Microreaction System. Applied Mineralogy in Research, Economy, Technology, Ecology and Culture. In Microreaction Technology: Industrial Prospects; Rammlmair, D., Mederer, J., Oberthür, T., Heimann, R. B., Pentinghaus, H., Eds.; Rammlmair, D., Mederer, J., Oberthür, T., Heimann, R. B., Pentinghaus, H., Series Eds.; Springer-Verlag Berlin Heidelberg, 2000; pp 207–212.