D. S.  Yu, Luck, R. F., and Murdoch, W. W., ?Competition, resource partitioning and coexistence of an endoparasitoid Encarsia perniciosi and an ectoparasitoid Aphytis melinus of the California red scale?, Ecological Entomology, vol. 15, pp. 469-480, 1990.

R.  Stouthamer and Luck, R. F., ?Transition from bisexual to unisexual laboratory cultures in Encarsia pernsiosi (Hymenoptera: Aphelindae) Tower: a likely cause of competitive displacement?, Colloques de l'INRA, vol. No 48, pp. 117-118, 1988.

R.  Stouthamer and Luck, R. F., ?Transition from bisexual to unisexual culture in Encarsia perniciosi (Hymenoptera: Aphelinidae): new data and a reinterpretation?, Annals of the Entomological Society of America, vol. 84, pp. 150-157, 1991.

F. C.  Roberts, Luck, R. F., and Dahlsten, D. L., ?Natural decline of a pine needle scale population at South Lake Tahoe?, California Agriculture, vol. 27, p. 10-Dec, 1973.

W. W.  Murdoch, Luck, R. F., Walde, S. J., and Reeve, J. D., ?A refuge for red scale under control by Aphytis : structural aspects?, Ecology, vol. 70, pp. 1707-1714, 1989.

R. F.  Luck and Dahlsten, D. L., ?Bionomics of the pine needle scale, Chionaspis pinifoliae and its natural enemies at South Lake Tahoe, California?, Annals of the Entomological Society of America, vol. 67, pp. 309-316, 1974.