@article{2112, author = {R\'\i os, Sixto}, title = {Sobre las singularidades de la integral de Laplace}, journal = {Portugaliae mathematica}, volume = {3}, year = {1942}, pages = {110-114}, zbl = {0026.32304}, mrnumber = {0006774}, language = {es}, url = {http://dml.mathdoc.fr/item/2112} }
Ríos, Sixto. Sobre las singularidades de la integral de Laplace. Portugaliae mathematica, Tome 3 (1942) pp. 110-114. http://gdmltest.u-ga.fr/item/2112/