@article{Hansen16COCOPerformance,
  author    = {Nikolaus Hansen and Anne Auger and Dimo Brockhoff and Dejan Tu{\v s}ar and Tea Tu{\v s}ar},
  title     = {{COCO:} Performance Assessment},
  journal   = {CoRR},
  volume    = {abs/1605.03560},
  year      = {2016},
  url       = {http://arxiv.org/pdf/1605.03560.pdf}
}