@article{10_1017_S0017089512000766,
     author = {SAEEDI, F. and G., M. FARROKHI D.},
     title = {SUBGROUP {PERMUTABILITY} {DEGREE} {OF} {PSL(2,pn)}},
     journal = {Glasgow mathematical journal},
     pages = {581--590},
     year = {2013},
     volume = {55},
     number = {3},
     doi = {10.1017/S0017089512000766},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000766/}
}