@article{10_4064_cm95_2_8,
     author = {Mieczys{\l}aw K. Mentzen},
     title = {On groups of essential values of topological
 cylinder cocycles over minimal rotations},
     journal = {Colloquium Mathematicum},
     pages = {241--253},
     publisher = {mathdoc},
     volume = {95},
     number = {2},
     year = {2003},
     doi = {10.4064/cm95-2-8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm95-2-8/}
}