Approximation Algorithms for Min-k-Overlap Problems Using the Principal Lattice of Partitions Approach.

H. Narayanan Subir Roy Sachin B. Patkar Approximation Algorithms for Min-k-Overlap Problems Using the Principal Lattice of Partitions Approach. 306-330 1996 21 J. Algorithms 2 db/journals/jal/jal21.html#NarayananRP96