@ARTICLE{Różycki_R._Discrete-continuous_2016, author={Różycki, R. and Waligóra, G. and Węglarz, J.}, volume={64}, number={No 2}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={383-393}, howpublished={online}, year={2016}, title={Discrete-continuous project scheduling with preemptable activities}, URL={http://journals.pan.pl/Content/84516/PDF/10.1515bpasts-2016-0043.pdf}, doi={10.1515/bpasts-2016-0043}, }