@article{1256054783, author = {Griego, Richard J.}, title = {Local time as a derivative of occupation}, journal = {Illinois J. Math.}, volume = {11}, number = {4}, year = {1967}, pages = { 54-63}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054783} }
Griego, Richard J. Local time as a derivative of occupation. Illinois J. Math., Tome 11 (1967) no. 4, pp. 54-63. http://gdmltest.u-ga.fr/item/1256054783/