@article{10_14708_ma_v48i1_6507,
     author = {Zofia Wr\'oblewska},
     title = {Approximate solutions and numerical analysis of a spring-mass running model},
     journal = {Mathematica Applicanda},
     pages = { 25--48},
     publisher = {mathdoc},
     volume = {48},
     number = {1},
     year = {2020},
     doi = {10.14708/ma.v48i1.6507},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/ma.v48i1.6507/}
}