@article{BMMS_2010_33_3_a8,
     author = {Nak Eun Cho and Oh Sang Kwon},
     title = {A {Class} of {Integral} {Operators} {Preserving} {Subordination} and {Superordination}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2010},
     volume = {33},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2010_33_3_a8/}
}