@Article{Orlitsky2003,
author = {Orlitsky, A and Santhanam, NP and Zhang, J}, 
title = {Always good Turing: Asymptotically optimal probability estimation}, 
journal = {Science}, 
volume = {302}, 
number = {5644}, 
pages = {427--431}, 
year = {2003}, 
abstract = {}, 
location = {}, 
keywords = {}}