APA (7th ed.) Citation

Gao, S., & Peng, Q. (1997). Hierarchical geometric constraint model for parametric feature based modeling. Journal of computer science and technology, 12(3), 193-201. https://doi.org/10.1007/BF02948969

Chicago Style (17th ed.) Citation

Gao, Shuming, and Qunsheng Peng. "Hierarchical Geometric Constraint Model for Parametric Feature Based Modeling." Journal of Computer Science and Technology 12, no. 3 (1997): 193-201. https://doi.org/10.1007/BF02948969.

MLA (9th ed.) Citation

Gao, Shuming, and Qunsheng Peng. "Hierarchical Geometric Constraint Model for Parametric Feature Based Modeling." Journal of Computer Science and Technology, vol. 12, no. 3, 1997, pp. 193-201, https://doi.org/10.1007/BF02948969.

Warning: These citations may not always be 100% accurate.