@ARTICLE{Kirstein-NN-2012,
  author = {Kirstein, {\relax St}ephan and Wersing, Heiko and Gross, Horst-Michael
    and Koerner, Edgar},
  title = {A Life-Long Learning Vector Quantization Approach for Interactive
    Learning of Multiple Categories},
  journal = {Neural Networks (NN)},
  year = {2012},
  volume = {28},
  pages = {90--105}
}