@article{10_1017_S0017089500003098,
     author = {Habibullah, G. M.},
     title = {A note on a pair of integral operators involving {Whittaker} functions},
     journal = {Glasgow mathematical journal},
     pages = {99--100},
     year = {1977},
     volume = {18},
     number = {1},
     doi = {10.1017/S0017089500003098},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003098/}
}