Giga, Yoshikazu, and Xingfei Xiang. “Lorentz Space Estimates for Vector Fields With Divergence and Curl in Hardy Spaces”. Tamkang Journal of Mathematics 47, no. 2 (June 30, 2016): 249–260. Accessed May 2, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1932.