00311nam a2200121Ia 4500008004100000100004600041245002800087260002500115300000900140650001600149942000700165999001700172190216s9999||||xx |||||||||||||| ||und||  aNarayanan S And Manicavachagom Pillay T K 0aDifferential Equations;  bViswanathan S.c1981  a295p  aMathematics  cBK  c30780d30780