“Additivity of elementary maps on gamma rings: doi:10.17398/2605-5686.34.1.61” (2019) Extracta Mathematicae, 34(1), p. 61–76. Available at: https://revista-em.unex.es/index.php/EM/article/view/2605-5686.34.1.61 (Accessed: 22 December 2024).