EN
A random model of microscopic structure of zinc-blende type A_{1-x}B_{x}C_{1-y}D_{y} quaternary alloys, based entirely on the elastic bond-stretching and bond-bending forces of two-element components AC, AD, BC, and BD, was constructed. The model was applied to Cd_{1-x}Mn_{x}Te_{1-y}Se_{y} quaternary alloys and the calculated nearest-neighbor distances were compared with the experimental data. Additionally, a possibility of particle exchange (within each sublattice) was included into the model and a possibility of studying the preferential coordination was discussed.