"Campbell R. M." . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@en . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@en . . . . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@nl . "Whitney A. R." . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@nl . . "scholarly article"@en . . . . . . . . "Putnam N." . "im Januar 1996 ver\u00F6ffentlichter wissenschaftlicher Artikel"@de . "Bartel N." . . "1996ApJ...461L..95C" . "\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 1996"@uk . "wetenschappelijk artikel"@nl . . . "Ratner M. I." . . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@en . "95\u201398" . . "10.1086/310013" . . . "1996-01-01T00:00:00Z"^^ . . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@nl . "461" . . . . "VLBI-derived trigonometric parallax and proper motion of PSR B2021+51"@en . . "Cappallo R. J." . "Shapiro I. I." .