For another look at Sharp and Harker see:

http://findarticles.com/p/articles/mi_m2386/is_1_113/ai_86063326

For A.l.Loyd and Reynardine see:

http://findarticles.com/p/articles/mi_m2386/is_3_115/ai_n8694034

For collecting and fieldwork:

http://findarticles.com/p/articles/mi_m2386/is_1_117/ai_n16346138