Authors: Blažej, Václav^Aff10, Choudhary, Pratibha^Aff10, Knop, Dušan^Aff10, Křišt’an, Jan Matyáš^Aff10, Suchý, Ondřej^Aff10, Valla, Tomáš^Aff10

Contributors: Goos, Gerhard, Founding Editor^Aff1, Hartmanis, Juris, Founding Editor^Aff2, Bertino, Elisa, Editorial Board Member^Aff3, Gao, Wen, Editorial Board Member^Aff4, Steffen, Bernhard, Editorial Board Member^Aff5, Woeginger, Gerhard, Editorial Board Member^Aff6, Yung, Moti, Editorial Board Member^Aff7, Koenemann, Jochen, editor^Aff8, Peis, Britta, editor^Aff9

Superior Title: Approximation and Online Algorithms : 19th International Workshop, WAOA 2021, Lisbon, Portugal, September 6–10, 2021, Revised Selected Papers. 12982:23-38