@article{10_1017_S0017089500005218,
     author = {Nasim, C.},
     title = {Integral operators involving {Whittaker} functions},
     journal = {Glasgow mathematical journal},
     pages = {139--148},
     year = {1983},
     volume = {24},
     number = {2},
     doi = {10.1017/S0017089500005218},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005218/}
}