Carme, J., Ceresna, M., & Goebel, M. (2006). Query-based Learning of XPath Expressions. In Y. Sakakibara, S. Kobayashi, K. Sato, T. Nishino, & E. Tomita (Eds.), Grammatical Inference: Algorithms and Applications - 8th International Colloquium, ICGI 2006, Tokyo, Japan, September 20-22, 2006, Proceedings (pp. 342–343). Springer. https://doi.org/10.1007/11872436_29