J. Tragtenberg, F. Calegario, G. Cabral, and G. Ramalho.
" TumTá and Pisada: Two Foot-controlled Digital Dance and Music Instruments Inspired by Popular Brazillian Traditions", in Anais do XVII Simpósio Brasileiro de Computação Musical, São João del-Rei, 2019, pp. 76-83, doi: https://doi.org/10.5753/sbcm.2019.10426.