@article{10_4064_cm_42_1_241_254,
     author = {A. Iwanik},
     title = {Weak convergence and weighted averages for groups of operators},
     journal = {Colloquium Mathematicum},
     pages = {241--254},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1979},
     doi = {10.4064/cm-42-1-241-254},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-42-1-241-254/}
}