@article{1093888522, author = {Hickman, John L.}, title = {Commutativity of generalized ordinals.}, journal = {Notre Dame J. Formal Logic}, volume = {19}, number = {1}, year = {1978}, pages = { 702-704}, language = {en}, url = {http://dml.mathdoc.fr/item/1093888522} }
Hickman, John L. Commutativity of generalized ordinals.. Notre Dame J. Formal Logic, Tome 19 (1978) no. 1, pp. 702-704. http://gdmltest.u-ga.fr/item/1093888522/