@INPROCEEDINGS{Weinrich-ROMAN-2014,
  author = {Weinrich, {\relax Ch}ristoph and Wengefeld, Tim and Schroeter, {\relax
    Ch}ristof and Gross, Horst-Michael},
  title = {People Detection and Distinction of their Walking Aids in {2D} Laser
    Range Data based on Generic Distance-Invariant Features},
  booktitle = {IEEE Int. Symp. on Robot and Human Interactive Communication (RO-MAN)},
  year = {2014},
  pages = {767--773},
  publisher = {IEEE}
}