"scientific article published on 01 November 1989"@en . . "1989-11-01T00:00:00Z"^^ . . . "Apparent fracture toughness of all-ceramic crown systems"@nl . "62" . . "5" . "10.1016/0022-3913(89)90073-5" . "Apparent fracture toughness of all-ceramic crown systems"@nl . . . . "Apparent fracture toughness of all-ceramic crown systems"@en . "S F Rosenstiel" . . "article scientifique publi\u00E9 en 1989"@fr . . "wetenschappelijk artikel"@nl . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0432 \u043B\u0438\u0441\u0442\u043E\u043F\u0430\u0434\u0456 1989"@uk . . . "2607476" . "Apparent fracture toughness of all-ceramic crown systems"@nl . . . . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en payares de 1989"@ast . . "S S Porter" . "529-532" . . "im November 1989 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "Apparent fracture toughness of all-ceramic crown systems"@en . "Apparent fracture toughness of all-ceramic crown systems"@en . . . "Apparent fracture toughness of all-ceramic crown systems"@en .