_:B1964efc56481ab04bbd4e5f4313115ef . "Stefan" . "Liberski" . "Stefan Liberski" . . . . "Liberski, Stefan" . . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef "2023-05-20"^^ . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef "072902574" . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef . _:B1964efc56481ab04bbd4e5f4313115ef .