@article{10_4064_sm_70_2_165_175,
     author = {Marek Bo\.zejko},
     title = {A new group algebra and lacunary sets in discrete noncommutative groups},
     journal = {Studia Mathematica},
     pages = {165--175},
     publisher = {mathdoc},
     volume = {70},
     number = {2},
     year = {1981},
     doi = {10.4064/sm-70-2-165-175},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-70-2-165-175/}
}