Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
S. McGrath,Some ergodic theorems for commuting $L_{1}$ contractions,Studia Mathematica,0039-3223,"Institute of Mathematics, Polish Academy of Sciences",1981,70,2,153-160,https://cir.nii.ac.jp/crid/1360292620983148672,https://doi.org/10.4064/sm-70-2-153-160