Taehyun Park Edward Lank Pascal Poupart Michael Terry Is the sky pure today? AwkChecker: an assistive tool for detecting and correcting collocation errors. 121-130 2008 UIST http://doi.acm.org/10.1145/1449715.1449736 conf/uist/2008 db/conf/uist/uist2008.html#ParkLPT08