@article{1093956554, author = {Clay, Robert E.}, title = {The number of moduli in $n$-ary relations.}, journal = {Notre Dame J. Formal Logic}, volume = {1}, number = {1-2}, year = {1960}, pages = { 118-121}, language = {en}, url = {http://dml.mathdoc.fr/item/1093956554} }
Clay, Robert E. The number of moduli in $n$-ary relations.. Notre Dame J. Formal Logic, Tome 1 (1960) no. 1-2, pp. 118-121. http://gdmltest.u-ga.fr/item/1093956554/