00370nam a2200133Ia 4500003000400000008004100004020002300045040000800068100002100076245008400097260002900181300001400210365001200224LDD181029s9999    xx            000 0 und d  a3211832742cE79.95  cLDD  aWerthner, Hannes 0aInformation technology and tourism- a challenging relationshipcHannes Werthner  aNew YorkbSpringerc1999  axx, 323p.  bE 79.95