00385nam a2200133Ia 4500003000400000008004100004020002600045040000800071100001800079245008700097260004100184300001500225365001100240LDD181029s9999    xx            000 0 und d  a9781593858728c34.00  cLDD  aRuhe, Valerie 0aEvaluation in distance education and e-learningbThe unfolding ModelcValerie Ruhe  aNew YorkbGuiltord Publicationc2009  axiii, 306p  b34.00