00293nam a2200121Ia 4500008004100000041001200041082001100053100001700064245004800081260002700129300000800156650000700164221030s9999    xx            000 0 und d  aEnglish  a105.23  aA. Belevtsev 0aRadio Circuit Constructioncby A. Belevtsev  bMIR Pub.aMoscowc1974  a284  aEE