@article{700759,
     title = {On some pretopologies associated with a topology},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1972},
     pages = {145-146},
     zbl = {0309.54003},
     url = {http://dml.mathdoc.fr/item/700759}
}

Garg, K. M.; Naimpally, S. A. On some pretopologies associated with a topology, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1972), pp. 145-146. http://gdmltest.u-ga.fr/item/700759/