Forsyth, Andrew Russell.
Theory of Differential Equations Part 1 :Exact Equations and PFaff`s Problem / - 1st ed / - New York : Dover Publications, Inc , 1994 - xiii, 344p ;
Mathematics
B333 / J9F.1-2
Theory of Differential Equations Part 1 :Exact Equations and PFaff`s Problem / - 1st ed / - New York : Dover Publications, Inc , 1994 - xiii, 344p ;
Mathematics
B333 / J9F.1-2