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@article{DAN_1975_224_6_a6, author = {E. I. Pustyl'nik}, title = {On subordination relations for concave functions of selfadjoint operators}, journal = {Doklady Akademii Nauk}, pages = {1264--1267}, publisher = {mathdoc}, volume = {224}, number = {6}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_224_6_a6/} }
E. I. Pustyl'nik. On subordination relations for concave functions of selfadjoint operators. Doklady Akademii Nauk, Tome 224 (1975) no. 6, pp. 1264-1267. http://geodesic.mathdoc.fr/item/DAN_1975_224_6_a6/