@article{DA_1988_28_a5,
     author = {V. V. Servakh},
     title = {The traveling salesman problem on tape graphs},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {45--55},
     publisher = {mathdoc},
     number = {28},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_1988_28_a5/}
}