@article{1102947733, author = {Smithson, R. E.}, title = {Fixed points in partially ordered sets.}, journal = {Pacific J. Math.}, volume = {49}, number = {2}, year = {1973}, pages = { 363-367}, language = {en}, url = {http://dml.mathdoc.fr/item/1102947733} }
Smithson, R. E. Fixed points in partially ordered sets.. Pacific J. Math., Tome 49 (1973) no. 2, pp. 363-367. http://gdmltest.u-ga.fr/item/1102947733/