The top documents tagged [bulgarian amateur astronomers]

Jovan Aleksić Milan Jevtović. 2003-2009, alternately in Serbia and Bulgaria (odd years in Bulgaria, even years in Serbia) High School "Hristo Botev" (Belogradchik,

Jovan Aleksić Milan Jevtović. 2003-2009, alternately in Serbia and Bulgaria (odd years in Bulgaria, even years in Serbia) High School "Hristo Botev" (Belogradchik,

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