Document Type : Survey
. (2003). . Mathematical Culture and Thought, 22(2), 1-6.
. "", Mathematical Culture and Thought, 22, 2, 2003, 1-6.
. (2003). '', Mathematical Culture and Thought, 22(2), pp. 1-6.
, "," Mathematical Culture and Thought, 22 2 (2003): 1-6,
. . An Expository Journal of the Iranian Mathematical Society. 2003;22(2):1-6 (In Persian).