Boschi et al. (1992), Cremonte et al. (2007)†, Iribarne & Martinez (1999), Milner et al. (2012)†, Ribeiro et al. (2003), Ribeiro et al. (2004), Rosenberg (2020)†, Shih et al. (2016), Spivak (1997)†, Truchet et al. (2019)†, Weis & Weis (2004)†
Entries marked with † represent indirect references to location through citation.