@InProceedings{Bader2009On,
	 author =	{Johannes Bader and Dimo Brockhoff and Samuel Welten and  Eckart Zitzler},
	 title =	{{On Using Populations of Sets in Multiobjective Optimization}},
	 booktitle =	{{Evolutionary Multi-Criterion Optimization. Lecture notes in Computer Science, Volume 5467/2009, Nantes, France}},
	 month =	{October},
	 year =		{2009}
}