@InProceedings{birx_et_al:LIPIcs.APPROX-RANDOM.2019.21,
  author =	{Birx, Alexander and Disser, Yann and Schewior, Kevin},
  title =	{{Improved Bounds for Open Online Dial-a-Ride on the Line}},
  booktitle =	{Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2019)},
  pages =	{21:1--21:22},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-125-2},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{145},
  editor =	{Achlioptas, Dimitris and V\'{e}gh, L\'{a}szl\'{o} A.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.APPROX-RANDOM.2019.21},
  URN =		{urn:nbn:de:0030-drops-112367},
  doi =		{10.4230/LIPIcs.APPROX-RANDOM.2019.21},
  annote =	{Keywords: dial-a-ride on the line, elevator problem, online algorithms, competitive analysis, smartstart, competitive ratio}
}