. (2016). Bulletin of the Iranian Mathematical Society. (e861). Bulletin of the Iranian Mathematical Society, 42(5), e861

. "Bulletin of the Iranian Mathematical Society" .e861 , Bulletin of the Iranian Mathematical Society, 42, 5, 2016, e861.

. (2016). 'Bulletin of the Iranian Mathematical Society', Bulletin of the Iranian Mathematical Society, 42(5), e861.

, "Bulletin of the Iranian Mathematical Society," Bulletin of the Iranian Mathematical Society, 42 5 (2016): e861,

. Bulletin of the Iranian Mathematical Society. BIMS. 2016;42(5):e861.