中国科学院数学与系统科学研究院期刊网
(Lp,Lq) Estimates for Multilinear Oscillatory Singular Integrals with Smooth Phases
Shan Zhen LU, Gui Ping TAO
Acta Mathematica Sinica . 2003, (4): 645 -654 .  DOI: 10.1007/s10114-003-0258-2