Document Type : Survey
. (2004). . Mathematical Culture and Thought, 23(2), 31-42.
. "", Mathematical Culture and Thought, 23, 2, 2004, 31-42.
. (2004). '', Mathematical Culture and Thought, 23(2), pp. 31-42.
, "," Mathematical Culture and Thought, 23 2 (2004): 31-42,
. . An Expository Journal of the Iranian Mathematical Society. 2004;23(2):31-42 (In Persian).
