TY  - BOOK
AU  - Arscott, F. M.
TI  - Periodic differential equations: an introduction to Mathieu, Lam e  and allied functions 
U1  - 517.38 ARS 
PY  - 1964///
CY  - New York
PB  - Macmillan
KW  - Differential equations
KW  - Harmonic functions
N1  - Includes bibliographical references
ER  -