@article{1093888514, author = {Silverstein, Anna}, title = {A generalization of combinatorial operators.}, journal = {Notre Dame J. Formal Logic}, volume = {19}, number = {1}, year = {1978}, pages = { 639-645}, language = {en}, url = {http://dml.mathdoc.fr/item/1093888514} }
Silverstein, Anna. A generalization of combinatorial operators.. Notre Dame J. Formal Logic, Tome 19 (1978) no. 1, pp. 639-645. http://gdmltest.u-ga.fr/item/1093888514/