%0 Journal Article %A Zofia Wróblewska %T Approximate solutions and numerical analysis of a spring-mass running model %J Mathematica Applicanda %D 2020 %P 25-48 %V 48 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v48i1.6507/ %R 10.14708/ma.v48i1.6507 %G pl %F 10_14708_ma_v48i1_6507