00349nam a2200121Ia 4500008004100000040001700041082002300058110004300081245005800124260002100182300000900203650001500212190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta380.59bI39N  aIndian Institute of Technology (Delhi) 0aNational system conference (NSC-86)btechnical digest  aDelhibIITc1987  a57p.  aTechnology