Volume 28, Issue 1, pp. 114-133, 1981. Complexity Zoo, [1] (页面存档备份,存于互联网档案馆), accessed Mars 25, 2009 Adi Shamir. IP = PSPACE. Journal of the ACM, volume
Computational Complexity: A Modern Approach, Cambridge University Press; 1 edition, 2009, ISBN 978-0521424264 Complexity Zoo - list of over 400 complexity classes