NORRIS, Christopher. Metamorphosen. Musicological Annual, Ljubljana, SI, v. 49, n. 1, p. 145–153, 2013. DOI: 10.4312/mz.49.1.145-153. Disponível em: https://journals.uni-lj.si/MuzikoloskiZbornik/article/view/2530. Acesso em: 24 mar. 2025.