Role of magic numbers in thermodynamic quantities of 206Pb and 138Ba using BCS and Lipkin-Nogami models Kh. Benam, V. Dehghani and S. A. Alavi Eur. Phys. J. A, 55 7 (2019) 105 Published online: 04 July 2019 DOI: 10.1140/epja/i2019-12785-3