@article{GDZPPN002316102, title = {Finite Covers and Modules of Functions.}, journal = {Mathematische Annalen}, volume = {237}, year = {1978}, pages = {117-124}, zbl = {0381.32013}, url = {http://dml.mathdoc.fr/item/GDZPPN002316102} }
Samsky, Stanley R. Finite Covers and Modules of Functions.. Mathematische Annalen, Tome 237 (1978) pp. 117-124. http://gdmltest.u-ga.fr/item/GDZPPN002316102/