Nicodemo, T. L. ., and R. dos . Santos. “Terra Dos Pássaros: Permanence of Counterculture Elements in Toninho Horta’s Production of the 1970’s”. Per Musi, no. 30, Nov. 2014, pp. 1-11, https://periodicos.ufmg.br/index.php/permusi/article/view/38863.