@article{
author = {Dominik Janzing and  Pawel Wocjan},
title = {A Simple PromiseBQP-complete Matrix Problem},
journal = {Theory of Computing},
year = {2007},
volume = {3},
number = {4},
pages = {61-79},
publisher = {Theory of Computing},
eprint = {toc:v003/a004},
URL = {http://www.theoryofcomputing.org/articles/main/v003/a004},
}