Document Type : Survey
. (2009). . Mathematical Culture and Thought, 27(2), 27-38.
. "", Mathematical Culture and Thought, 27, 2, 2009, 27-38.
. (2009). '', Mathematical Culture and Thought, 27(2), pp. 27-38.
, "," Mathematical Culture and Thought, 27 2 (2009): 27-38,
. . An Expository Journal of the Iranian Mathematical Society. 2009;27(2):27-38 (In Persian).
