@article{TUW-213204,
author = {Nothegger, Clemens and Mayer, Alfred and Chwatal, Andreas and Raidl, G{\"u}nther},
title = {Solving the post enrolment course timetabling problem by ant colony optimization},
journal = {Annals of Operations Research},
year = {2012},
volume = {Volume 194},
number = {1},
pages = {325--339},
url = {http://publik.tuwien.ac.at/files/PubDat_213204.pdf}
}