@article{10_1017_S2040618500033542, author = {Atkinson, F. V.}, title = {Asymptotic formulae for linear oscillations}, journal = {Glasgow mathematical journal}, pages = {105--111}, year = {1957}, volume = {2}, number = {3}, doi = {10.1017/S2040618500033542}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500033542/} }