@article{DA_1998_5_1_a0,
     author = {E. Kh. Gimadi and N. I. Glebov and V. V. Zalyubovskii},
     title = {On problems of efficient barter},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {3--11},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1998_5_1_a0/}
}