- Algeria
- Rouabah and Descamps, 2001
- Austria
- Richter, 2010
- Bosnia-Herzegovina
- Richter, 2010
- Canada
- Richter, 2010
- Egypt
- Mahmoud, 2007
- Finland
- Richter, 2010
- France
- Bouché, 1972; Pelosi, 2008; Richter, 2010
- Germany
- Richter, 2010
- New Zealand
- Lee, 1959
- Romania
- Pop and Pop, 2006
- Sweden
- Richter, 2010
- United Kingdom
- Michaelsen, 1900; Sims and Gerard, 1985; Sims and Gerard, 1999; Blakemore, 2008
- United States
- Tomlin, 1983; James et al., 2010
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Data are not exhaustive. The database is permanently a work in progress.