@article{CM_1967__18_1-2_79_0, author = {Aull, C. E.}, title = {Ideals and filters}, journal = {Compositio Mathematica}, pages = {79--86}, publisher = {P. Noordhoff N. V., Groningen}, volume = {18}, number = {1-2}, year = {1967}, mrnumber = {223469}, zbl = {0189.02103}, language = {en}, url = {http://archive.numdam.org/item/CM_1967__18_1-2_79_0/} }
Aull, C. E. Ideals and filters. Compositio Mathematica, Tome 18 (1967) no. 1-2, pp. 79-86. http://archive.numdam.org/item/CM_1967__18_1-2_79_0/
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