Bourdon & Bowman (1970), Cain & Cohen (2014), Cohen & Kern (2012), Hyun et al. (2003), Kight & George (2018), Lee et al. (1982), Lee et al. (1981), Mace & Curran (2011), Pamatmat (1978), Reese & George (2018), Romero-Rodríguez et al. (2017)†, Shields et al. (2015)†, Tomkins (1944), Vernberg (1983)†, Vernberg (1987)†, West et al. (2014), Wunderlich et al. (2017)†
Entries marked with † represent indirect references to location through citation.