00393nam a22001457a 450000500170000000800410001708200110005810000160006924500670008525000080015226000400016050000150020050000160021565000160023120241122160445.0241122b        |||||||| |||| 00| 0 eng d  a515.35  aNarayanan S  aDifferential EquationscNarayanan S; Manicavachagom Pillay T K  a1st  aMadrasbViswanathan Pvt. Ltd.c1981  aTransfered  aMathematics  vMathematics