Orga F, Mitchell A, Freixes M, Aletta F, Alsina-Pages RM, Foraster M. Multilevel annoyance modelling of short environmental sound recordings. Sustainability. 2021 May 21;13(11):5779. doi: 10.3390/su13115779
Michels KB, Rothman KJ. Update on unethical use of placebos in randomised trials. Bioethics. 2003 Apr;17(2):188-204.