A Primal-Dual Parallel Approximation Technique Applied to Weighted Set and Vertex Covers.

Samir Khuller Uzi Vishkin Neal E. Young A Primal-Dual Parallel Approximation Technique Applied to Weighted Set and Vertex Covers. 280-289 1994 17 J. Algorithms 2 db/journals/jal/jal17.html#KhullerVY94