@article{10_4064_sm156_1_3,
     author = {Mariusz Lema\'nczyk and Mieczys{\l}aw K. Mentzen and Hitoshi Nakada},
     title = {Semisimple extensions of irrational rotations},
     journal = {Studia Mathematica},
     pages = {31--57},
     publisher = {mathdoc},
     volume = {156},
     number = {1},
     year = {2003},
     doi = {10.4064/sm156-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm156-1-3/}
}