Greedy Differential Approximations for Min Set Cover. - Cristina Bazgan; Jérôme Monnot; Vangelis Th. Paschos; Fabrice Serrière (SOFSEM, 2005)

On the differential approximation of MIN SET COVER. - Cristina Bazgan; Jérôme Monnot; Vangelis Th. Paschos; Fabrice Serrière (Theor. Comput. Sci., 2005)