Δ-matroids and Pfaffian forms.
Wenzel, Walter
Séminaire Lotharingien de Combinatoire [electronic only], Tome 27 (1991), / Harvested from The Electronic Library of Mathematics
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Publié le : 1991-01-01
EUDML-ID : urn:eudml:doc:121649 
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     title = {<title-group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><article-title xml:lang="en"><math><mtext>$\Delta$</mtext></math>-matroids and Pfaffian forms.</article-title></title-group>},
     journal = {S\'eminaire Lotharingien de Combinatoire [electronic only]},
     volume = {27},
     year = {1991},
     zbl = {0981.05521},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01667703}
}

Wenzel, Walter. Δ-matroids and Pfaffian forms.. Séminaire Lotharingien de Combinatoire [electronic only], Tome 27 (1991) . http://gdmltest.u-ga.fr/item/01667703/