@article{10_4064_sm_17_2_189_197,
     author = {A. Bharucha-Reid},
     title = {Ergodic projections for semi-groups of periodic operators},
     journal = {Studia Mathematica},
     pages = {189--197},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1958},
     doi = {10.4064/sm-17-2-189-197},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-17-2-189-197/}
}