. _:b2556656 . "stable" . . . _:b2556606 . _:b2556656 _:b2556606 . "doi"@en . _:b2556634 _:b2556584 . "Digital Object Identifier"@en . _:b2556634 . _:b2556606 . . . _:b2556206 . _:b2556634 . _:b2556134 _:b2556206 . _:b2556206 _:b2556182 . . _:b2556584 . _:b2556472 . _:b2556134 . _:b2556134 . _:b2556182 . _:b2556472 . _:b2556472 _:b2556656 . _:b2556447 . _:b2556584 . "http://purl.org/ontology/bibo/"^^ . . _:b2556182 . _:b2556447 _:b2556634 . _:b2556447 . _:b2556447 . _:b2556584 .