@article{TIMM_2017_23_3_a25,
     author = {M. Yu. Khachay and E. D. Neznakhina},
     title = {Solvability of the {Generalized} {Traveling} {Salesman} {Problem} in the class of quasi- and pseudopyramidal tours},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {280--291},
     year = {2017},
     volume = {23},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2017_23_3_a25/}
}