. . "Photochromie." . . "Photochromie" . "Vinylheptafulvenderivate." . . "Vinylheptafulvenderivate" . "Blaulicht." . . "Blaulicht" . "Molekularer Schalter." . . "Molekularer Schalter" . "Dihydroazulene." . . "Dihydroazulene" . . . . . . . . . . . . . . "Molecular switches based on dihydroazulene-vinylheptafulvene photochromism" . . . . "Photorezeptor." . . "Photorezeptor" .