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23 results at
Combinatorica
Expanding graphs contain all small trees
Joel Friedman
Nicholas Pippenger
1987
Combinatorica
Constructing a perfect matching is in random NC
R.M. Karp
E. Upfal
et al.
1986
Combinatorica
On matroid intersections
Heinz Gröflin
Alan J. Hoffman
1981
Combinatorica
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