1. Schmidt, D.: Malignant rhabdoid tumor of the kidney. Histology, ultrastructure and differential diagnosis. Electron Microscopy Symposium. British and French Division of the International Academy of Pathology, Brüssel, 11. 12. Mai 1984
2. Göbel, V., Jürgens, H., Beck, J., Brandeis, W., Etspüler, G., Gadner, H., Harms, D., Schmidt, D., Sternschulte, W., Treuner, J., Göbel, U.: Malignant peripheral neuroectodermal tumors (MPNT) of childhood and adolescence: Retrospective analysis of treatment results in 30 patients. ASCO Meeting, Quebec, Canada, März 1986
3. Jürgens, H., Mansfeld Jeuk, L., Etspüler, G., Ertelt, W., Exner, U., Reiter, A., Schmidt, D., Göbel, U. (for the CESS 81 Study Group): Small round cell tumors of the chest wall: Results of a cooperative study. SIOP, XVIII Annual Meeting, Beograd, 15 20 September 1986
4. Müschenich, M., Jürgens, H., Dunst, J., Göbel, U., Ritter, J., Sauer, R., Schmidt, D., Voûte, P. A., Winkler, U., Harms, D. (for the GPO CESS Group): Small cell sarcoma of the chest wall: Results of the GPO Cooperative Ewing's Sarcoma Studies. 15th International Cancer Congress, Hamburg, 16. 22. August 1990
5. Müschenich, M., Jürgens, H., Dunst, J., Göbel, U.,
Ritter, J., Sauer, R., Schmidt, D., Voûte, P. A., Winkler, K., Harms,
D. (for the GPO CESS Group): Small cell sarcoma of the chest wall: The
CESS experience. SIOP, XXII Annual Meeting, Rom, 3. 5.
Oktober 1990
6. Leuschner, I., Schmidt, D., Hoffmann, H., Dietel, M., Harms, D.: Expression of p-glykoprotein in soft tissue tumors of childhood. Correlation to treatment response. Second International Symposium on Cytostatic Drug Resistance, Kiel, 1. - 2. November 1991
7. Schmidt, D., Lappe, T., Leuschner, I., Kreipe, H, Harms, D.: Growth
fractions in neuroblastoma. XXV Meeting of the International Society of
Pediatric Oncology (SIOP), San Francisco, 5. - 8. Oktober 1993
8. Rudolph, P., Gloeckner, K., Schmidt, D.: Neuroendokrine Differenzierung
in gastrointestinalen Stromatumoren. 81. Tagung der Deutschen Gesellschaft
für Pathologie., Berlin, 19. - 24. Mai 1997