Document Type : Survey
. (2005). . Mathematical Culture and Thought, 24(1), 87-89.
. "", Mathematical Culture and Thought, 24, 1, 2005, 87-89.
. (2005). '', Mathematical Culture and Thought, 24(1), pp. 87-89.
, "," Mathematical Culture and Thought, 24 1 (2005): 87-89,
. . An Expository Journal of the Iranian Mathematical Society. 2005;24(1):87-89 (In Persian).
