Fundamentals of differential equations.
NAGLE, R. Kent
Fundamentals of differential equations. R. Kent Nagle and Edward B. Saff - Fourth - Reading, Massachusetts Addison-Wesley, 1996. - 657 p.
Differential equations
Fundamentals of differential equations. R. Kent Nagle and Edward B. Saff - Fourth - Reading, Massachusetts Addison-Wesley, 1996. - 657 p.
Differential equations