APA (7th ed.) Citation

Liao, Z., Liu, J., Shi, G., & Meng, J. (2021). Grid Partition Variable Step Alpha Shapes Algorithm. Mathematical problems in engineering, 2021, 1-8. https://doi.org/10.1155/2021/9919003

Chicago Style (17th ed.) Citation

Liao, Zhenxiu, Jun Liu, Guodong Shi, and Junxia Meng. "Grid Partition Variable Step Alpha Shapes Algorithm." Mathematical Problems in Engineering 2021 (2021): 1-8. https://doi.org/10.1155/2021/9919003.

MLA (9th ed.) Citation

Liao, Zhenxiu, et al. "Grid Partition Variable Step Alpha Shapes Algorithm." Mathematical Problems in Engineering, vol. 2021, 2021, pp. 1-8, https://doi.org/10.1155/2021/9919003.