@article{DMGT_2000_20_2_a6,
     author = {Lacko, Vladim{\'\i}r},
     title = {Persistency in the {Traveling} {Salesman} {Problem} on {Halin} graphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {231--242},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2000_20_2_a6/}
}