@inbook{inbook, title  = {{Hiking in Real and Virtual Worlds}},

 publisher = {{Springer Berlin Heidelberg}},

 url = {{}},

 year = {{2003}},

 month = {{1}},

 author = {{Cavens D and Lange E}},

 doi = {{10.1007/978-3-662-10398-2_15}},

 isbn = {{9783642073946}},

 pages = {{207-215}},

 note = {{Accessed on 2024/12/22}}}