@article{GDZPPN002058367, title = {Sur le prolongement naturel de fonctions sigma-additives.}, journal = {Commentarii mathematici Helvetici}, volume = {39}, year = {1964}, pages = {90-96}, zbl = {0129.03603}, url = {http://dml.mathdoc.fr/item/GDZPPN002058367} }
Cairoli, R. Sur le prolongement naturel de fonctions sigma-additives.. Commentarii mathematici Helvetici, Tome 39 (1964) pp. 90-96. http://gdmltest.u-ga.fr/item/GDZPPN002058367/