A. . Golodnov, A. . Golodnova, N. . Burlakova, and A. . Elantsev, “APPLICATION OF MATHEMATICAL MODELING FOR THE UNIFICATION OF THE PRODUCTION OF METALLURGICAL ENTERPRISES ON THE EXAMPLE OF TUBING”, Acta Metall Slovaca, vol. 23, no. 2, pp. 161–170, Jun. 2017.