00293nam a2200109Ia 4500008004100000020001800041082001400059100002200073245004400095260003600139300000800175190710s9999    xx            000 0 und d  a0-8039-5010-1  a151 P942S  aProctor, Robert W 0aSkill acquisition and human performance  aLondonbSage Publicationsc1995  a442