共 50 条
- [1] 20 YEARS OF GERMAN DEMOCRATIC REPUBLIC - 20 YEARS OF CHEMICAL RESEARCH ZEITSCHRIFT FUR CHEMIE, 1969, 9 (09): : 321 - &
- [2] 20 YEARS OF CANCER CONTROL IN GERMAN DEMOCRATIC REPUBLIC ARCHIV FUR GESCHWULSTFORSCHUNG, 1969, 34 (2-3): : 97 - &
- [3] 20YEARS OF GERMAN DEMOCRATIC REPUBLIC - 20 YEARS OF CHEMISTRY FOR PEACE IN GDR CHEMISCHE TECHNIK, 1969, 21 (09): : 514 - &
- [4] 20 YEARS OF GEOLOGICAL RESEARCH AND EXPLORATION IN GERMAN DEMOCRATIC REPUBLIC ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE, 1969, 15 (09): : 447 - &
- [6] ON OCCASION OF 20 ANNIVERSARY OF GERMAN DEMOCRATIC REPUBLIC ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE, 1969, 15 (09): : 446 - &
- [7] 25 YEARS OF GERMAN-DEMOCRATIC-REPUBLIC - 30 YEARS OF DEMOCRATIC-REPUBLIC-OF-POLAND - INTRODUCTION PRZEMYSL CHEMICZNY, 1975, 54 (02): : 65 - 65
- [8] 20TH ANNIVERSARY OF GERMAN DEMOCRATIC REPUBLIC - 20 YEARS OF STRUGGLE FOR PEACE, DEMOCRACY, AND SOCIALISM ZELLSTOFF UND PAPIER, 1969, 18 (09): : 257 - &
- [9] 25 YEARS OF GERMAN DEMOCRATIC REPUBLIC - 25 YEARS OF CHEMISTRY FOR PEACE CHEMISCHE TECHNIK, 1974, 26 (10): : 614 - 622
- [10] 20 Years after the German Reunification: Mental Health Problems of Political Prisoners in the Former German Democratic Republic (GDR) EUROPEAN JOURNAL OF PSYCHOTRAUMATOLOGY, 2011, 2