| [report on the etiology of virus diseases. 1st quarter 1968. 3]. | | 1968 | 4314370 |
| [virus occurrence in raw sewage sludge and effluent of a biological clarification plant]. | | 1969 | 4318307 |
| [results of virological diagnosis in 19 institutes. annual report 1970. 12]. | | 1972 | 4402408 |
| [silent passage of echo virus type 20 together with dyspepsia coli strains in a day nursery school]. | | 1966 | 4869923 |
| [epidemiologic and virologic clarification of a meningitis outbreak in the capital city of berlin, produced by type-30 echo virus]. | | 1970 | 5487977 |
| [epidemic occurrence of echo virus type 6 and type 30 infections during the late summer 1967 in berlin]. | | 1968 | 5745199 |