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Newby, G.B.: Virtual reality (1993)
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Nugent, W.R.: Virtual reality : advanced imaging special effects let you roam in cyberspace (1991)
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Henderson, T.: Using the Internet and text-based virtual realities to create the infocenter of the future (1994)
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Metzinger, T.: Why Is Virtual Reality interesting for philosophers? (2018)
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Poulter, A.: Building a browsable virtual library (1994)
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