@article{1183505427, author = {Schweigert, G. E.}, title = {Minimal $A$-sets, infinite orbits, and fixed elements}, journal = {Bull. Amer. Math. Soc.}, volume = {49}, number = {12}, year = {1943}, pages = { 754-758}, language = {en}, url = {http://dml.mathdoc.fr/item/1183505427} }
Schweigert, G. E. Minimal $A$-sets, infinite orbits, and fixed elements. Bull. Amer. Math. Soc., Tome 49 (1943) no. 12, pp. 754-758. http://gdmltest.u-ga.fr/item/1183505427/