TY  - BOOK
AU  - El'Sgol'Ts, L. E.
AU  - Norkin, S. B.
TI  - Introduction to the theory and application of differential equations with deviating arguments
U1  - 515.35 
PY  - 1973///
CY  - N. Y.
PB  - Academic Press
KW  - Differential equations
N1  - Bibl. : P. 293-357
ER  -