@article{GDZPPN002303930, title = {The Gelfand Degree of a Topological Algebra.}, journal = {Mathematische Annalen}, volume = {189}, year = {1970}, pages = {285-298}, zbl = {0194.15501}, url = {http://dml.mathdoc.fr/item/GDZPPN002303930} }
DIETRICH, W.E.jr. The Gelfand Degree of a Topological Algebra.. Mathematische Annalen, Tome 189 (1970) pp. 285-298. http://gdmltest.u-ga.fr/item/GDZPPN002303930/