@article{Liu2014671,
title = "Non-manual grammatical marker recognition based on multi-scale, spatio-temporal analysis of head pose and facial expressions ",
journal = "Image and Vision Computing ",
volume = "32",
number = "10",
pages = "671 - 681",
year = "2014",
note = "Best of Automatic Face and Gesture Recognition 2013 ",
author = "Jingjing Liu and Bo Liu and Shaoting Zhang and Fei Yang and Peng Yang and Dimitris N. Metaxas and Carol Neidle",
}