1. Syntax-directed recognition of hand-printed two-dimensional mathematics;Anderson,1967
2. A method for the structural analysis of two-dimensional mathematical expressions;Chang;Inf. Sci.,1970
3. A syntactic approach for handwritten mathematical formula recognition;Belaid;IEEe Trans. Pattern. Anal. Mach. Intell.,1984
4. CROHME2011: competition on recognition of online handwritten mathematical expressions;Mouchère,2011
5. Advancing the state of the art for handwritten math recognition: the CROHME competitions, 2011-2014;Mouchère;Int. J. Document Anal. Recognit.,2016