Csirik János;  Dósa György;  Kószó Dávid: Online Scheduling with Machine Cost and a Quadratic Objective Function.
   In:  SOFSEM 2020: Theory and Practice of Computer Science.   Lecture Notes in Computer Science  (12011).  Springer Netherlands, Cham, pp. 199-210. (2020)  ISBN 9783030389192; 9783030389185