> Multivolume work
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Proceedings [2] A. Scientific sections
Bucharest: Publ. House of the Acad. of the Socialist Republic of Romania, 1981
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Proceedings [3] B. Sympozia
Bucharest: Publ. House of the Acad. of the Socialist Republic of Romania, 1981
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Proceedings [4] C. Meetings on specialized topics. D. @Commemorations
Bucharest: Publ. House of the Acad. of the Socialist Republic of Romania, 1981
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Proceedings [1] A. Scientific sections. B. @Symposia. C. @Meetings on specialized topics. D. @Commemorations
Bucharest: Publ. House of the Acad. of the Socialist Republic of Romania, 1981