00291nam a2200109Ia 4500008004100000041000800041082001600049100002400065245006600089260001900155365000700174230303s9999    xx            000 0 und d  aeng  a511.324 MEN  aMENDELSON (ELLIOTT)  aTheory and Problems of Boolean Algebra and Switching Circuits  aNew DelhibTMH  cRS