Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1979__38_3-4_115396, author = {Kumar, Ashok}, title = {On functional methods - {II}}, journal = {Portugaliae mathematica}, pages = {113--127}, publisher = {mathdoc}, volume = {38}, number = {3-4}, year = {1979}, mrnumber = {0745239}, zbl = {0599.40007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1979__38_3-4_115396/} }
Kumar, Ashok. On functional methods - II. Portugaliae mathematica, Tome 38 (1979) no. 3-4, pp. 113-127. http://geodesic.mathdoc.fr/item/PORMA_1979__38_3-4_115396/