@article{10_1017_S2040618500034821,
     author = {Copson, E. T.},
     title = {On the asymptotic expansion of {Airy's} {Integral}},
     journal = {Glasgow mathematical journal},
     pages = {113--115},
     year = {1963},
     volume = {6},
     number = {2},
     doi = {10.1017/S2040618500034821},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034821/}
}