"36-46" . . . . . . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@nl . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@en . "13348117" . . "1956-06-01T00:00:00Z"^^ . "\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 \u0447\u0435\u0440\u0432\u043D\u0456 1956"@uk . . . . "11" . "R MULLER" . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en xunu de 1956"@ast . "scientific article published on 01 June 1956"@en . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@nl . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@en . . "wetenschappelijk artikel"@nl . . "1-2" . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@en . "1956 \u0569\u057E\u0561\u056F\u0561\u0576\u056B \u0570\u0578\u0582\u0576\u056B\u057D\u056B 1-\u056B\u0576 \u0570\u0580\u0561\u057F\u0561\u0580\u0561\u056F\u057E\u0561\u056E \u0563\u056B\u057F\u0561\u056F\u0561\u0576 \u0570\u0578\u0564\u057E\u0561\u056E"@hy . . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@nl . . "[Improvement of phase-contrast microscopy by the use of media with optimal refractive indices]"@en .