Approximability of OFDMA Scheduling. - Marcel Ochel; Berthold Vöcking (ESA, 2009)

Online Packing with Gradually Improving Capacity Estimations and Applications to Network Lifetime Maximization. - Marcel Ochel; Klaus Radke; Berthold Vöcking (ICALP (2), 2012)

Approximation and online algorithms for selected network optimization problems. - Marcel Ochel (2013)