@article{1029001056, author = {Chernoff, Paul R.}, title = {Universally commutatable operators are scalars.}, journal = {Michigan Math. J.}, volume = {20}, number = {1}, year = {1973}, pages = { 101-107}, language = {en}, url = {http://dml.mathdoc.fr/item/1029001056} }
Chernoff, Paul R. Universally commutatable operators are scalars.. Michigan Math. J., Tome 20 (1973) no. 1, pp. 101-107. http://gdmltest.u-ga.fr/item/1029001056/