Zhang, S., & Wang, Y. M. (2001). An approach to positron emission tomography based on penalized cross-entropy minimization. Signal processing, 81(5), 1069-1074. https://doi.org/10.1016/S0165-1684(00)00245-0
Chicago Style (17th ed.) CitationZhang, Song, and Yuan Mei Wang. "An Approach to Positron Emission Tomography Based on Penalized Cross-entropy Minimization." Signal Processing 81, no. 5 (2001): 1069-1074. https://doi.org/10.1016/S0165-1684(00)00245-0.
MLA (9th ed.) CitationZhang, Song, and Yuan Mei Wang. "An Approach to Positron Emission Tomography Based on Penalized Cross-entropy Minimization." Signal Processing, vol. 81, no. 5, 2001, pp. 1069-1074, https://doi.org/10.1016/S0165-1684(00)00245-0.
Warning: These citations may not always be 100% accurate.