@article{RM_1989_44_6_a2,
     author = {A. P. Shostak},
     title = {Two decades of fuzzy topology: basic ideas, notions, and results},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {125--186},
     publisher = {mathdoc},
     volume = {44},
     number = {6},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1989_44_6_a2/}
}