Zaka O, Mohammed MA. The endomorphisms algebra of translations group and associative unitary ring of trace-preserving endomorphisms in affine plane. Proyecciones (Antofagasta, On line) [Internet]. 2020Jul.28 [cited 2024Apr.26];39(4):821-34. Available from: https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/4266