Geodesic
A bound for the Steiner tree problem in graphs
Mathematica slovaca, Tome 31 (1981) no. 2, pp. 155-163.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

Classification : 05C05, 68R10 
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     author = {Plesn{\'\i}k, J\'an},
     title = {A bound for the {Steiner} tree problem in graphs},
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     pages = {155--163},
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     number = {2},
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     zbl = {0458.05027},
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Plesník, Ján. A bound for the Steiner tree problem in graphs. Mathematica slovaca, Tome 31 (1981) no. 2, pp. 155-163. http://geodesic.mathdoc.fr/item/MASLO_1981__31_2_a5/