Erratum to "Progressive structural analysis for dynamic recognition of on-line handwritten mathematical expressions" [Pattern Recognition Letters 29 (5) (2008) 647-655].

Ba-Quy Vuong Siu Cheung Hui Yulan He Erratum to "Progressive structural analysis for dynamic recognition of on-line handwritten mathematical expressions" [Pattern Recognition Letters 29 (5) (2008) 647-655]. 1454 2008 29 Pattern Recognition Letters 9 http://dx.doi.org/10.1016/j.patrec.2008.02.010 db/journals/prl/prl29.html#VuongHH08a