@article{1103039900, author = {Rolf, Howard L.}, title = {The free lattice generated by a set of chains.}, journal = {Pacific J. Math.}, volume = {8}, number = {4}, year = {1958}, pages = { 585-595}, language = {en}, url = {http://dml.mathdoc.fr/item/1103039900} }
Rolf, Howard L. The free lattice generated by a set of chains.. Pacific J. Math., Tome 8 (1958) no. 4, pp. 585-595. http://gdmltest.u-ga.fr/item/1103039900/