@article{AUM_2014_68_2_a6,
     author = {Cie\'slak, Waldemar and Martini, Horst and Mozgawa, Witold},
     title = {Rotation indices related to {Poncelet{\textquoteright}s} closure theorem},
     journal = {Annales Universitatis Mariae Curie-Sk{\l}odowska. Mathematica },
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUM_2014_68_2_a6/}
}