@article{10_4064_fm204_2_6,
     author = {Eduardo Jorquera},
     title = {On the entropy for group actions on the circle},
     journal = {Fundamenta Mathematicae},
     pages = {177--187},
     publisher = {mathdoc},
     volume = {204},
     number = {2},
     year = {2009},
     doi = {10.4064/fm204-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm204-2-6/}
}