@article{AUCMP_2004_45_1_a1,
     author = {Lachout, Petr},
     title = {A solution of an equation for indexed functions},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {3--8},
     year = {2004},
     volume = {45},
     number = {1},
     mrnumber = {2109688},
     zbl = {1185.60008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_2004_45_1_a1/}
}