P268: Enumeration of all bounded union

P268: Enumeration of all bounded union
Input:
A graph with $h$ multiedges each with at most $d$ vertices.
Output:
All minimal subset $U$ of at most $k$ vertices that entirely includes at least one set from each multiedge.
Complexity:
$O(dc^{k+1}h + \min(kc^{2k}, hkc^k))$ time.
Comment:
Reference:
[Damaschke2006] (Bibtex)