TY  - BOOK
AU  - Levitan B M
AU  -  Zhikov V V
TI  - Almost periodic functions and differential equations
U1  - B331, M2 
PY  - 1982///
CY  - Cambridge
PB  - CUP         
KW  -  Ordinary differential equations
KW  - Mathematics
N1  - Bibliography 200-207p
ER  -