_:B97b64fc5761d83d858ecf58379d1b492 . "Geoloog"@nl . "Kostov" . . "Ivan" . . "Ivan Kostov" . . "Kostov, Ivan" . . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 "2023-05-22"^^ . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 "072206241" . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 . _:B97b64fc5761d83d858ecf58379d1b492 .