E. Bender/T. Case/M. Gilpin: Perturbation experiments in community
ecology - theory and practice. Ecology 65 (1984), 1-13.

3819 J. Hainzl: Multiparameter bifurcation of a predator-prey system.
SIAM J. math. Anal. 23 (1992), 150-180. [4373]

R. Holt: Predation, apparent competition, and the structure of
prey communities. Theor. Pop. Biol. 12 (1977), 197-229.

S. Levin/C. Segel: Models of the influence of predation on aspect
diversity in prey populations. J. Math. Biol. 14 (1982), 253-284.

1068 Wolfgang Metzler: Dynamische Systeme in der O''kologie.
Teubner 1987.

L. Slobodkin: Prudent predation does not require group selection.
Am. Natur. 108 (1974), 665-678.

T. Zaret/R. Paine: Species introduction in a tropical lake.
Science 182 (1973), 449-455.