On the L1-Convergence of r-order Derivative of Complex Trigonometric Series．
YAO Kui (Department of Mathematics and Information Sciences, Zhejiang University, Hangzhou 310028,China)
ZHOU Guan-zhen (Department of Mathematics,Ningbo University,Ningbo 315211,China)
姚奎，周观贞. 关于复三角级数导级数的L1收敛[J]. 浙江大学学报（理学版）, 1999, 26(2): 14-18.
YAO Kui,ZHOU Guan-zhen . On the L1-Convergence of r-order Derivative of Complex Trigonometric Series．. Journal of ZheJIang University(Science Edition), 1999, 26(2): 14-18.
