ON CERTAIN EXPANSIONS INVOLVING PRODUCTS OF LEGENDRE FUNCTIONS
T. G. COWLING; ON CERTAIN EXPANSIONS INVOLVING PRODUCTS OF LEGENDRE FUNCTIONS, The Quarterly Journal of Mathematics, Volume os-11, Issue 1, 1 January 1940, Page
The Quarterly Journal of Mathematics, Volume os-11, Issue 1, 1940, Pages 222– 224, https://doi.org/10.1093/qmath/os-11.1.222. Published: 01 January 1940.