TY  - BOOK
AU  - Fletcher, Alexis
TI  - Differential equations : : an introduction 
SN  - 9781638976662 (pbk.)
PY  - 2023///
CY  - New York
PB  - Murphy & Moore
KW  - Differential equations
KW  - Calculus
KW  - Bessel functions
N1  - Includes bibliographical references and index
ER  -