@article{10_4064_cm139_2_6,
     author = {Karol Gryszka},
     title = {Asymptotic period in dynamical systems in metric spaces},
     journal = {Colloquium Mathematicum},
     pages = {245--257},
     publisher = {mathdoc},
     volume = {139},
     number = {2},
     year = {2015},
     doi = {10.4064/cm139-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm139-2-6/}
}