中国科学院数学与系统科学研究院期刊网
Almost Everywhere Convergence of Riesz Means on Noncompact Symmetric Spece SL(3,H)/Sp(3)
Zhu Fuliu
Acta Mathematica Sinica . 1997, (4): 545 -552 .  DOI: 10.1007/BF02559948