Document Type : Survey
. (1999). . Mathematical Culture and Thought, 18(2), 21-33.
. "", Mathematical Culture and Thought, 18, 2, 1999, 21-33.
. (1999). '', Mathematical Culture and Thought, 18(2), pp. 21-33.
, "," Mathematical Culture and Thought, 18 2 (1999): 21-33,
. . An Expository Journal of the Iranian Mathematical Society. 1999;18(2):21-33 (In Persian).
