@article{IM2_1993_41_1_a3,
     author = {A. Yu. Kolesov and Yu. S. Kolesov},
     title = {Relaxation cycles of differential-difference equations},
     journal = {Izvestiya. Mathematics },
     pages = {75--94},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1993_41_1_a3/}
}