 Since 1987 José María participated in meetings with the theologian authors of the famous collection of liberation theology, guided by "Vozes" publishers of Petropolis, Brazil, until the collection was blocked by Cardinal Ratzinger from the Vatican "Congregation for the Doctrine of Faith".He continued participating for many years in the group of theologians "Amerindia".In 1987 he also entered Ecumenical Association of Third World Theologians (EATWOT).