0016-3813 0016-3813 S0016-38132019000100108 10.24875/gmm.18004868 México 00 02 2019 00 02 2019 155 1 108 108 1 2018 154 613-6 2 1982 1 844-5 3 1986 69 96-102 4 1990 53 1084-8 5 1947