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