Document Type : Survey
. (2011). . Mathematical Culture and Thought, 29(2), 51-60.
. "", Mathematical Culture and Thought, 29, 2, 2011, 51-60.
. (2011). '', Mathematical Culture and Thought, 29(2), pp. 51-60.
, "," Mathematical Culture and Thought, 29 2 (2011): 51-60,
. . An Expository Journal of the Iranian Mathematical Society. 2011;29(2):51-60 (In Persian).
