Conditions for nonstationarity of an optimal steady mode of the plant
M. S. Dukel'skii, A. M. Tsirlin

This publication is cited in the following articles:

1. A. G. Ivanov, “Elementy matematicheskogo apparata zadach pochti periodicheskoi optimizatsii. I”, Izv. IMI UdGU, 2002, no. 1(24), 3–100