1. Derek Bailey. 1993. Improvisation: its Nature and Practice in Music. Da Capo Press New York NY. Derek Bailey. 1993. Improvisation: its Nature and Practice in Music. Da Capo Press New York NY.
2. Ian Hattwick J. M. and Marcelo M. Wanderley. 2013. Use of 3D Printed Components in the Creation of the Prosthetic Instruments. http://www.idmil.org/_media/publications/2013/3d_print_prosthetics.pdf Ian Hattwick J. M. and Marcelo M. Wanderley. 2013. Use of 3D Printed Components in the Creation of the Prosthetic Instruments. http://www.idmil.org/_media/publications/2013/3d_print_prosthetics.pdf