@article {BaGoCaGlCr2012, title = {Movelets: A dictionary of movement}, journal = {Electronic Journal of Statistics}, volume = {6}, year = {2012}, pages = {559-578}, issn = {1935-7524}, doi = {10.1214/12-EJS684}, author = {Bai, J and Goldsmith, J and Caffo, B and Glass, T and Crainiceanu, C} }