00343nam a2200133Ia 45000010005000000080041000050400013000460820021000591000020000802450082001002600009001823000011001915460007002027106140321s9999    xx            000 0 und d  cPK-LaUMT  a 620.0042bPET-I  aPetroski, Henry  aInvention by design : How engineers get from thought to thincPetroski, Henry  c1997  a242 p.  aEN