@article{GDZPPN002400545, title = {A Generalization of Andr\'e's Systems.}, journal = {Mathematische Zeitschrift}, volume = {99}, year = {1967}, pages = {380-395}, zbl = {0152.18903}, url = {http://dml.mathdoc.fr/item/GDZPPN002400545} }
Foulser, David A. A Generalization of André's Systems.. Mathematische Zeitschrift, Tome 99 (1967) pp. 380-395. http://gdmltest.u-ga.fr/item/GDZPPN002400545/