@article{1102689259, author = {Apter, Arthur W. and Gitik, Moti}, title = {Some results on Specker's problem.}, journal = {Pacific J. Math.}, volume = {135}, number = {2}, year = {1988}, pages = { 227-249}, language = {en}, url = {http://dml.mathdoc.fr/item/1102689259} }
Apter, Arthur W.; Gitik, Moti. Some results on Specker's problem.. Pacific J. Math., Tome 135 (1988) no. 2, pp. 227-249. http://gdmltest.u-ga.fr/item/1102689259/