@article{MASLO_1972__22_4_a2,
     author = {Fut\'a\v{s}, Eugen},
     title = {Extension of {Linear} {Operators}},
     journal = {Mathematica slovaca},
     pages = {271--281},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1972},
     mrnumber = {0338313},
     zbl = {0257.47006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1972__22_4_a2/}
}