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Problemi na naukata i obrazovanieto : (izbrani dokladi, statii i izkazvanija)
Balevski, Angel, (1974)
Sistemata nauka-proizvodstvo v ikonomicheskoto razvitie na NRB : [monogr.]
Pandeva, Margarita, (1979)
Methodological problems of science : the iteration cycle ; science - methodology of science
Polikarov, Azarja P., (1983)