@article{DA_2011_18_5_a1,
     author = {A. N. Glebov and D. Zh. Zambalayeva},
     title = {An approximation algorithm for the minimum {2-PSP} with different weight functions valued~1 and~2},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {11--37},
     publisher = {mathdoc},
     volume = {18},
     number = {5},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2011_18_5_a1/}
}