@article{BMMS_2014_37_1_a19,
     author = {Ismat Beg and Samina Ashraf},
     title = {Fuzzy {Relational} {Calculus}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2014},
     volume = {37},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2014_37_1_a19/}
}