Goursat, Edouard.
Course in Mathematical Analysis: Differntial Equations / - 1st ed / - New York 14 : Dover Publications Inc.. - p.300,xxx :
Mathematics
B33 / J9.2.2
Course in Mathematical Analysis: Differntial Equations / - 1st ed / - New York 14 : Dover Publications Inc.. - p.300,xxx :
Mathematics
B33 / J9.2.2