@article{Hunter:1981:EME,
author = {Hunter, C. and Guerrieri, B.},
title = {The eigenvalues of {M}athieu's equation and their branch
points},
journal = {Stud. Appl. Math.},
fjournal = {Studies in Applied Mathematics},
volume = {64},
year = {1981},
number = {2},
pages = {113–141},
issn = {0022-2526},
coden = {SAPMB6},
mrclass = {34B30},
mrnumber = {MR0608595 (82c:34030)},
mrreviewer = {R. C. Varma},
zblno = {0451.34021}}