The Role of the Internet in the SME Hotel Sector in Austria. - Markus Gratzer; Werner Winiwarter (Human.Society@Internet 2003, 2003)

Challenges of the Internet for the SME Hotel Sector in Austria. - Markus Gratzer; Werner Winiwarter (iiWAS, 2003)

Electronic business in tourism. - Markus Gratzer; Hannes Werthner; Werner Winiwarter (Int. J. Electron. Bus., 2004)