@article{SJIM_2006_9_2_a4,
     author = {E. Kh. Gimadi and E. N. Goncharov},
     title = {A~two-level choice problem for a~system of machines and nodes with a~nonlinear production function},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {44--54},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2006_9_2_a4/}
}