. . . . . "Swiss physicist" . "1912Z"^^ . "2006Z"^^ . "2006-06-20Z"^^ . "1912-06-20Z"^^ . . . . . . . . . . "Markus Eduard Fierz (20 June 1912 \u2013 20 June 2006) was a Swiss physicist, particularly remembered for his formulation of spin-statistics theorem, and for his contributions to the development of quantum theory, particle physics, and statistical mechanics."@en . "Fierz, Markus"@en . . "Markus Fierz"@en . . "2006-09-06Z"^^ .