Rüdiger Valk and Matthias Jantzen.
The residue of vector sets with applications to decidability problems
in Petri nets.
Acta Informatica 21, pages 643-674, 1985.
@ARTICLE{Valk+85,
AUTHOR = {Valk, R{\"u}diger and Jantzen, Matthias},
JOURNAL = {Acta Informatica 21},
PAGES = {643--674},
TITLE = {The Residue of Vector Sets with Applications to Decidability Problems in {Petri} Nets},
YEAR = 1985
}