APA (7th ed.) Citation

Xu, Y., Ma, X., & Ning, X. (2007). Estimation of ApEn for short-term HFECG based on multi-resolution analysis. Physica A, 376, 401-408. https://doi.org/10.1016/j.physa.2006.10.055

Chicago Style (17th ed.) Citation

Xu, Yinlin, Xiaofei Ma, and Xinbao Ning. "Estimation of ApEn for Short-term HFECG Based on Multi-resolution Analysis." Physica A 376 (2007): 401-408. https://doi.org/10.1016/j.physa.2006.10.055.

MLA (9th ed.) Citation

Xu, Yinlin, et al. "Estimation of ApEn for Short-term HFECG Based on Multi-resolution Analysis." Physica A, vol. 376, 2007, pp. 401-408, https://doi.org/10.1016/j.physa.2006.10.055.