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| Author | Yes/No |
| Cooper 1980 | No |
| Cooper 1981 | No |
| Cooper 1988 | No |
| Cooper 1998 | No |
| Dionne 1994 | No |
| Dolci 1994 | No |
| Forbes 1984 | No |
| Forbes 1989 | No |
| Forbes 1990 | No |
| Hersh 2000 | No |
| Kiersch 1994 | No |
| Kubitzek 2003 | Yes |
| Lehnert 1990 | No |
| Mehlisch 1995 | No |
| Moller 2000 | Yes |
| Olson 2001 | No |
| Seymour 1996 | No |
| Seymour 2003 | Yes |
| Skoglund 1991 | No |
| Sunshine 1986 | No |
| Vattaraphudej 1986 | No |
