@article{
author = {Yossi Azar and  Avrim Blum and  David P. Bunde and  Yishay Mansour},
title = {Combining Online Algorithms for Acceptance and Rejection},
journal = {Theory of Computing},
year = {2005},
volume = {1},
number = {1},
pages = {105-117},
publisher = {Theory of Computing},
eprint = {toc:v001/a006},
URL = {http://www.theoryofcomputing.org/articles/main/v001/a006},
}