1. Awerbuch, B., Bartal, Y., Fiat, A., Rosén, A.: Competitive non-preemptive call control. In: Proc. of the 5th ACM-SIAM Symp. on Discrete Algorithms (SODA), pp. 312–320 (1994)
2. Bachmann, U.T., Halldórsson, M.M., Shachnai, H.: Online selection of intervals and t-intervals. Information and Computation 233, 1-11 (2013)
3. Also appeared in Proc. of the 12th SWAT, pp. 383-394 (2010)
4. Borodin, A., El-Yaniv, R.: Online Computation and Competitive Analysis. Cambridge University Press (1998)
5. Chrobak, M.: Online aggregation problems. SIGACT News 45(1), 91–102 (2014)