SZABÓ , Sándor. CERTAIN COVERINGS OF FINITE HOMOCYCLIC ABELIAN GROUPS Periodica Polytechnica Civil Engineering, [S. l.], v. 32, n. 1-2, p. 69–72, 1988. Disponível em: https://pp.bme.hu/ci/article/view/3936. Acesso em: 19 may. 2024.