@article{1256051618, author = {Dowson, H. R.}, title = {A commutativity theorem for prespectral operators}, journal = {Illinois J. Math.}, volume = {17}, number = {4}, year = {1973}, pages = { 525-532}, language = {en}, url = {http://dml.mathdoc.fr/item/1256051618} }
Dowson, H. R. A commutativity theorem for prespectral operators. Illinois J. Math., Tome 17 (1973) no. 4, pp. 525-532. http://gdmltest.u-ga.fr/item/1256051618/