«It is important to realize that the term 'avatar' was used in another game later [??] in that period (Ultima IV) and that the concept of an 'avatar' was in several works of fiction prior to the development of Habitat including Vernor Vinge's True Names and John Brunner's Shockwave Rider» // Jessica Mulligan, Bridgette Patrovsky.Developing online games: an insider’s guide. — New Riders, 2003. — P. 454.
