Zwickl, P.; Lottspeich, F.; Dahlmann, B.; Baumeister, W.: Cloning and sequencing of the gene encoding the large (alpha-) subunit of the proteasome from Thermoplasma acidophilum. FEBS Letters. 278 (2), S. 217 - 221 (1991)

Engelhardt, H.: Electron Microscopy of Microbial Cell Wall Proteins. Surface Topography, Three-dimensional Reconstruction, and Strategies for Two-dimensional Crystallization. In: Fungal Cell Wall and Immune Response, S. 11 - 25 (Hg. Boucias; Latgé, J.P.; D.). Springer-Verlag, Berlin (1991)

Baumeister, W.; Zeitler, E.: Scanning Probe Microscopies (SXM) in Biology: Facts and Fictions. Scanned Probe Microscopy, New York. AIP Conference Proceedings 241, S. 544 - 546 (1991)

Typke, D.; Dierksen, K.; Baumeister, W.: Automatic Electron Tomography. 49th Ann. Meet. Electr. Micr. Soc. Am., San Francisco., (1991)