What year was 'Proactive policies for the stochastic resource-constrained project scheduling problem' published?
'Proactive policies for the stochastic resource-constrained project scheduling problem' was published in which year?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/eor/DeblaereDH11> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/journals/eor/DeblaereDH11>