- Dominique Collon,
- Sara Peterson,
- Eva Wilson,
- John Villiers,
- Eva Baer,
- W. Iain Mckay
- , and Madeline McLeod
Updated in this version
updated bibliography, 28 May 2015; updated and revised, 31 March 2000
updated bibliography, 28 May 2015; updated and revised, 31 March 2000