@article{v002a001,
 author = {Robert {\v S}palek and Mario Szegedy},
 title = {All Quantum Adversary Methods are Equivalent},
 journal = {Theory of Computing},
 year = {2006},
 pages = {1-18},
 publisher = {Theory of Computing},
 doi = {10.4086/toc.2006.v002a001},
 volume = {2},
 number = {1},
 URL = {http://www.theoryofcomputing.org/articles/v002a001},
 eprint = {toc:v002/a001},
}