On Principal Graphs and Weak Duality.
Sunder, V.S. ; Krishnan, Uma
Mathematica Scandinavica, Tome 74 (1994), p. 49-63 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1994-01-01
EUDML-ID : urn:eudml:doc:167280 
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     title = {On Principal Graphs and Weak Duality.},
     journal = {Mathematica Scandinavica},
     volume = {74},
     year = {1994},
     pages = {49-63},
     zbl = {0809.05057},
     url = {http://dml.mathdoc.fr/item/GDZPPN002362279}
}

Sunder, V.S.; Krishnan, Uma. On Principal Graphs and Weak Duality.. Mathematica Scandinavica, Tome 74 (1994) pp. 49-63. http://gdmltest.u-ga.fr/item/GDZPPN002362279/