Investigation of the freeze-out parameters in B–B, O–O, Ca–Ca and Au–Au collisions at 39 GeV Muhammad Waqas, Guang Xiong Peng, Fu-Hu Liu, Muhammad Ajaz and Abd Al Karim Haj Ismail Eur. Phys. J. Plus, 137 9 (2022) 1026 Published online: 09 September 2022 DOI: 10.1140/epjp/s13360-022-03191-8