Doc1 - Ferdowsi University of Mashhadprofdoc.um.ac.ir/articles/a/1016208.pdf · Fig. I(a), Fig. 2...
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Doc1 - Ferdowsi University of Mashhadprofdoc.um.ac.ir/articles/a/1016208.pdf · Fig. I(a), Fig. 2 and Fig. 6 respectively. a, "3 are slope. of Springer and X i where W T di 0. —
