@article{YJOR_1999_9_2_a0,
     author = {Drago\v{s} Cvetkovi\'c and Mirjana \v{C}angalovi\'c and Vera Kova\v{c}evi\'c-Vuj\v{c}i\'c},
     title = {Semidefinite {Relaxations} of {The} {Traveling} {Salesman} {Problem}},
     journal = {Yugoslav journal of operations research},
     pages = {157 },
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1999},
     zbl = {1006.90065},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_1999_9_2_a0/}
}