@article{1183523309, author = {Lyndon, R. C.}, title = {Properties preserved under algebraic constructions}, journal = {Bull. Amer. Math. Soc.}, volume = {65}, number = {6}, year = {1959}, pages = { 287-299}, language = {en}, url = {http://dml.mathdoc.fr/item/1183523309} }
Lyndon, R. C. Properties preserved under algebraic constructions. Bull. Amer. Math. Soc., Tome 65 (1959) no. 6, pp. 287-299. http://gdmltest.u-ga.fr/item/1183523309/