00348nam a2200133Ia 45000010005000000080041000050200018000460400013000640820019000771000020000962450082001162600009001985460007002077071140321s9999    xx            000 0 und d  a0-89862-217-4  cPK-LaUMT  a 658.45bDUC-S  aDurand, V. Mark  aSevere behavior problems : A functional communication trainicDurand, V. Mark  c1990  aEN