"Popivanov, Ivan" . _:B2918c386301014d0802158b92e61fc52 . "Popivanov, Ivan Gančev" . . "Popivanov" . . "Ivan Gančev" . "Ivan Gančev Popivanov" . . . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 "2023-05-20"^^ . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 "071147853" . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 . _:B2918c386301014d0802158b92e61fc52 .