@article{700655,
     title = {Convergence in fuzzy topological spaces},
     booktitle = {General topology and its relations to modern analysis and algebra IV},
     series = {GDML\_Books},
     publisher = {Society of Czechoslovak Mathematicians and Physicist},
     address = {Praha},
     year = {1977},
     pages = {[254]-259},
     mrnumber = {MR0809071},
     zbl = {0409.54008},
     url = {http://dml.mathdoc.fr/item/700655}
}

Lowen, R. Convergence in fuzzy topological spaces, dans General topology and its relations to modern analysis and algebra IV, GDML_Books,  (1977), pp. [254]-259. http://gdmltest.u-ga.fr/item/700655/