Pietrobon, C. E., Soares, D. A. . F. and Soares, P. F. (2004) “Isolation and acoustic treatment in a hospital environment: a case study”., Semina: Ciências Exatas e Tecnológicas, 16(4), pp. 529–535. doi: 10.5433/1679-0375.1995v16n4p529.