117. A weaker form of Pre-Ro

Math. Journal: Ann. Univ. Sci. Budap. Rolando Eötvos, Sec. Math. ISSN: 0524-9007. Hungary, v.49, p. 75-80, 2006
Authors: Caldas M., Jafari, S. and  Noiri, T.


 

Filed Under: 2005-2006

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