00488nam a2200157Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 528.5 HVO Hvozdara, M. 17900 Electromagnetic field of the earth Hvozdara, M Britislava Slovak Academic of Sciences 1978 193p Astronomy and Astrophysics Thesaurus BK 10528 10528 0 0 0 0 BAN KOD GEN 1992-12-19 0 528.5/ HVO 11439 2021-11-05 1992-12-19 BK