@article{v001a006,
 author = {Yossi Azar and Avrim Blum and David P. Bunde and Yishay Mansour},
 title = {Combining Online Algorithms for Acceptance and Rejection},
 year = {2005},
 pages = {105--117},
 doi = {10.4086/toc.2005.v001a006},
 publisher = {Theory of Computing},
 journal = {Theory of Computing},
 volume = {1},
 number = {6},
 URL = {http://www.theoryofcomputing.org/articles/v001a006},
}