I. Vidal Junior and P. J. de S. Tiné, “Concrete music in the 1960’s: from poetamenos to Long Plays in the São Paulo cultural scene”, Rev. Cria. Crít., vol. 31, no. 31, pp. 367–392, Jan. 2022, doi: 10.11606/issn.1984-1124.i31p367-392.