@article{JNSA_2013_6_4_a3,
     author = {\c{C}etkin, Vildan and Ayg\"un, Halis},
     title = {On double fuzzy preuniformity },
     journal = {Journal of nonlinear sciences and its applications},
     pages = {263-278},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {2013},
     doi = {10.22436/jnsa.006.04.04},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.22436/jnsa.006.04.04/}
}