Ay. Kolesov, APPLICATION OF TECHNIQUES OF RELAXATION OSCILLATIONS TO A SYSTEM OF DIFFERENTIAL-DIFFERENCE EQUATIONS FROM ECOLOGY, Sbornik. Mathematics, 81(1), 1995, pp. 77-86
The paper is devoted to the construction of a long-period cycle, model
ling a certain ecology problem, of a system of two differential-differ
ence equations smoothly depending on a small parameter.