Branch & Grindley (1979), Emmerson (1990), Emmerson (1994), Kochey (2013)†, Macnae (1962), Peer et al. (2015), Rosenberg (2020)†, Shih et al. (2018)†, Shih et al. (2022)†, Torres et al. (2009)†, Vorsatz (2009)
Entries marked with † represent indirect references to location through citation.