00444nam a2200133Ia 4500003000400000008004100004020002700045040000800072110004500080245012800125260002900253300001500282365001300297LDD181029s9999    xx            000 0 und d  a9783642031144cE149.95  cLDD  aWorld conference on computers in educati 0aEducation and technology for a better worldbProceedings of the 9th IFIP TC3 worlcWorld conference on computers in educati  aNew YorkbSpringerc2009  axiii, 466p  bE 149.95