@article{dunster:1995:uae, author = {Dunster, T. M.}, title = {Uniform asymptotic expansions for oblate spheroidal functions {II}: {N}egative separation parameter {$\lambda$}}, journal = {Proc. Roy. Soc. Edinburgh Sect. A}, fjournal = {Proceedings of the Royal Society of Edinburgh. Section A. Mathematics}, volume = {125}, year = {1995}, number = {4}, pages = {719–737}, issn = {0308-2105}, coden = {PEAMDU}, mrclass = {34E20 (33C99 34A20)}, mrnumber = {MR1357380 (97b:34059)}, mrreviewer = {Archibald D. MacGillivray}, zblno = {0836.33012}}