The bi-objective winner determination problem (2WDP-SC) of a combinatorial
procurement auction for transport contracts comes up to a multi-criteria set
covering problem. We are given a set B of bundle bids. A bundle bid b in B
consists of a bidding carrier c_b, a bid price p_b, and a set tau_b of
transport contracts which is a subset of the set T of tendered transport
contracts. Additionally, the transport quality q_t,c_b is given which is
expected to be realized when a transport contract t is executed by a carrier
c_b.