. "surface areas (BBT)"@en . _:b1 . _:b1 "Initiale Version"@de . _:b1 "2019-08-06T14:50:31+02:00" . _:b1 "Lena Vitt" . _:b2 . _:b2 "Lena Vitt" . _:b2 "2019-08-06T14:51:30+02:00" .