Kothe, Fausto, Clarissa Stefani Teixeira, Érico Pereira Gomes Felden, and Eugenio Andrés Díaz Merino. 2015. “Usability of Violin and Viola Shoulder Rest”. Per Musi, no. 32 (November):1-27. https://periodicos.ufmg.br/index.php/permusi/article/view/38460.