@article{AFM_2018_43_1_a28,
     author = {Grzegorz Lysik},
     title = {A characterization of real analytic functions},
     journal = {Annales Fennici Mathematici},
     pages = {475--482},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2018},
     doi = {10.5186/aasfm.2018.4325},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2018.4325/}
}