KOVAČEV, Asja Nina. Return to the Originals - Wagner, Jung, and Symbolic Forms. Musicological Annual, Ljubljana, SI, v. 45, n. 1, p. 89–115, 2009. DOI: 10.4312/mz.45.1.89-115. Disponível em: https://journals.uni-lj.si/MuzikoloskiZbornik/article/view/2423. Acesso em: 8 jul. 2025.