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A. Antov
ASTRONOMICAL OBSERVATORY - BELOGRADCHIK (in Bulgarian)
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M. K. Tsvetkov, K. Stavrev, K. P. Tsvetkova, E. H. Semkov, A. S. Mutafov, A. P. Borisova
DATABASE FOR WIDEFIELD PHOTOGRAPHIC ASTRONOMICAL OBSERVATIONS (in Bulgarian)
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M. Dacic, Z. Cvetkovic
OBSERVATIONS ON BELGRADE MERIDIAN CIRCLE (in Serbian)
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Milan S. Dimitrijevic
ASTRONOMY IN SERBIA (in Serbian)
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Milan S. Dimitrijevic
ASTRONOMICAL IMPORTANCE OF SPECTRAL LINESHAPE INVESTIGATIONS AND CORRESPONDING RESEARCH IN YUGOSLAVIA (in Serbian)
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G. Ivanov
ASTRONOMY ON THE SOFIA UNIVERSITY (in Bulgarian)
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G. R. Ivanov
STELLAR POPULATIONS IN M33
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I. Ivanov
PEOPLE'S ASTRONOMICAL OBSERVATORY AND PLANETARIUM "N. KOPERNIK" - VARNA: THE HISTORY AND FUTURE TASKS (in Bulgarian)
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Mijat Mijatovic
ASTRONOMY IN THE REPUBLIC OF MACEDONIA (in Macedonian)
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Luka C. Popovic
INVESTIGATIONS OF ACTIVE GALAXIES SPECTRAL LINESHAPES ON BELGRADE ASTRONOMICAL OBSERVATORY (in Serbian)
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Luka C. Popovic
AMATEUR ASTRONOMY IN YUGOSLAVIA (in Serbian)
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Y. Y. Shopov, D. A. Stoykova, D. Ford, L. N. Georgiev, L. Tsankov, D. Georgieva
INFLUENCE OF VARIATIONS OF THE EARTH'S ORBIT AND SOLAR LUMINOSITY ON THE SEA LEVEL CHANGES - BULGARIAN CONTRIBUTION TO SEA & SPACE EVENT OF EXPO-98
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I. Yankulova
NEW NARROW AND BROAD BAND IMAGES OF THE RINGED SAYFERT 2 GALAXY Mark 620
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