@article{10_4064_am29_2_4,
     author = {Lluis Alsed\`a and Jose Miguel Moreno},
     title = {On the primary orbits of star maps
 (first part)},
     journal = {Applicationes Mathematicae},
     pages = {157--183},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2002},
     doi = {10.4064/am29-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am29-2-4/}
}