@article{1183523855, title = {Research problem}, journal = {Bull. Amer. Math. Soc.}, volume = {67}, number = {6}, year = {1961}, language = {en}, url = {http://dml.mathdoc.fr/item/1183523855} }
(éd.). Research problem. Bull. Amer. Math. Soc., Tome 67 (1961) no. 6, . http://gdmltest.u-ga.fr/item/1183523855/