00407nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001600084245010000100260004900200300000800249650001600257221030s9999    xx            000 0 und d  a8122410537  aEnglish  a105.23bSin  aL. P. Singh 0aDigital Protection Protective Relaying from Electromechanical to Microprocessorcby L. P. Singh  bNew  Age International Pub.aNew Delhic1997  a272  aBE Computer