@article{IVM_2010_12_a6,
     author = {A. Khan and M. Shabir and Y. B. Jun},
     title = {Intuitionistic fuzzy quasi-ideals in ordered semigroups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {67--81},
     publisher = {mathdoc},
     number = {12},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2010_12_a6/}
}