00418nas a2200157   4500000000100000008004100001100001700042700002200059700002200081700001800103700002200121245008600143300001100229490000700240022001300247       2010                            d1 aPiotr Gawron1 aZbigniew Puchała1 aJaroslaw Miszczak1 aŁ. Skowronek1 aKarol Życzkowski00aRestricted numerical range: A versatile tool in the theory of quantum information  a1022040 v51  a00222488