Geoffrey Solano Guillaume Blin Mathieu Raffinot Jhoirene B. Clemente Jaime Caro On the Approximability of the Minimum Weight $t$-partite Clique Problem. 171-190 2020 24 J. Graph Algorithms Appl. 3 https://doi.org/10.7155/jgaa.00525 db/journals/jgaa/jgaa24.html#SolanoBRCC20