Eric Angel Evripidis Bampis Laurent Gourvès Approximation results for a bicriteria job scheduling problem on a single machine without preemption. 19-27 2005 94 Inf. Process. Lett. 1 http://dx.doi.org/10.1016/j.ipl.2004.12.007 db/journals/ipl/ipl94.html#AngelBG05