@article{1183524314, title = {Research problems}, journal = {Bull. Amer. Math. Soc.}, volume = {67}, number = {6}, year = {1961}, pages = { 456-460}, language = {en}, url = {http://dml.mathdoc.fr/item/1183524314} }
(éd.). Research problems. Bull. Amer. Math. Soc., Tome 67 (1961) no. 6, pp. 456-460. http://gdmltest.u-ga.fr/item/1183524314/