Philipp Stuermer Anthony Bucci Jürgen Branke Pablo Funes Elena Popovici Analysis of coevolution for worst-case optimization. 899-906 2009 GECCO http://doi.acm.org/10.1145/1569901.1570024 conf/gecco/2009g db/conf/gecco/gecco2009.html#StuermerBBFP09