Y. M. Niu & S. P. Tao. (1970). Boundedness of Parabolic Singular Integrals and Marcinkiewicz Integrals on Triebel-Lizorkin Spaces.
            <i>Analysis in Theory and Applications</i>. <i>27</i> (1).
            59-75.
         doi:10.1007/s10496-011-0059-x