@inproceedings{GutierrezEtal13,
  author    = {Fernando Gutierrez and Dejing Dou and Steven Fickas and Adam Martini and Hui Zong},
  title     = {{Hybrid Ontology-based Information Extraction for Automated Text Grading.}},
  booktitle = {Proceedings of the 12th IEEE International Conference on Machine Learning and Applications (ICMLA)},
  pages     = {359-364},
  year      = {2013},
}