00328nam a2200121Ia 4500003000400000008004100004020001300045040000800058100001900066245008500085260002700170300000900197LDD181029s9999    xx            000 0 und d  a80281192  cLDD  aHusen, Torsten 4aThe International encyclopedia of educationbresearch and studiescTorsten Husen  aOxfordbPergamonc1985  av.10