@article{MM_1999_11_8_a3,
     author = {A. M. Makxov},
     title = {Mutual debts canceling problem and nonpayment crisis},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {45--51},
     publisher = {mathdoc},
     volume = {11},
     number = {8},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1999_11_8_a3/}
}