. . . . "im Januar 2012 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . . . "20 years of antiprotonic helium"@en . . "20 years of antiprotonic helium"@nl . . . . . . . "20 years of antiprotonic helium"@nl . . . "20 years of antiprotonic helium"@en . . . . . . "20 years of antiprotonic helium"@en . "wetenschappelijk artikel"@nl . . . "20 years of antiprotonic helium"@nl . . "209" . "9-14" . . "2012-01-31T00:00:00Z"^^ . . . . . . "1-3" . "10.1007/S10751-011-0527-X" . . "article scientifique publi\u00E9 en 2012"@fr . "\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 \u0441\u0456\u0447\u043D\u0456 2012"@uk . . . . . . "20 years of antiprotonic helium"@en . .