TY - CONF T1 - Proceedings of the Twenty-First Workshop on Algorithm Engineering and Experiments, {ALENEX} 2019, San Diego, CA, USA, January 7-8, 2019 AU - Kobourov, S. G. AU - Meyerhenke, H. PY - 2019 PB - SIAM M3 - doi:10.1137/1.9781611975499 ER -