@article{GDZPPN002297000, title = {On Structures Defined by Mapping Filters}, journal = {Mathematische Annalen}, volume = {163}, year = {1966}, pages = {105-112}, zbl = {0149.24601}, url = {http://dml.mathdoc.fr/item/GDZPPN002297000} }
ENGELER, E. On Structures Defined by Mapping Filters. Mathematische Annalen, Tome 163 (1966) pp. 105-112. http://gdmltest.u-ga.fr/item/GDZPPN002297000/