Andris Ambainis William I. Gasarch Aravind Srinivasan Andrey Utis Lower bounds on the Deterministic and Quantum Communication Complexity of Hamming Distance http://arxiv.org/abs/cs.CC/0411076 2004 CoRR cs.CC/0411076 db/journals/corr/corr0411.html#cs-CC-0411076 informal publication