@article{GDZPPN002351870, title = {On Nets and Filters.}, journal = {Mathematica Scandinavica}, volume = {30}, year = {1972}, pages = {285-292}, zbl = {0268.54005}, url = {http://dml.mathdoc.fr/item/GDZPPN002351870} }
Aarnes, J.F.; Andenaes, P.R. On Nets and Filters.. Mathematica Scandinavica, Tome 30 (1972) pp. 285-292. http://gdmltest.u-ga.fr/item/GDZPPN002351870/