%0 Journal Article %A Pekka Kosunen %T Periodic orbits 1–5 of quadratic polynomials on a new coordinate plane %J Annales Fennici Mathematici %D 2018 %P 859-883 %V 43 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2018.4356/ %R 10.5186/aasfm.2018.4356 %G en %F AFM_2018_43_2_a14