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AuthorPopov, Anatoli I. (69)Kuzmin, Alexei (64)Kotomin, Eugene A. (47)Smits, Krisjanis (44)Zolotarjovs, Aleksejs (34)Piskunov, Sergei (30)Sarakovskis, Anatolijs (29)Purans, Juris (28)Antuzevics, Andris (25)Latvijas Astronomijas biedrība (25)... View MoreSubjectNATURAL SCIENCES (318)NATURAL SCIENCES:Physics (302)HUMANITIES and RELIGION (250)SOCIAL SCIENCES (28)mezosfēras mākoņi (25)observation data (25)sudrabainie mākoņi (25)mesospheric clouds (24)noctilucent clouds (24)Hronika, valodniecības (20)... View MoreDate Issued2020 - 2024 (428)2010 - 2019 (429)2000 - 2009 (46)1990 - 1999 (31)1980 - 1989 (26)1970 - 1979 (34)1960 - 1969 (17)1950 - 1959 (5)1940 - 1949 (5)1933 - 1939 (4)