@article{AM2_1980__21_182410,
     author = {\'A. Sz\'az and G. Sz\'az},
     title = {Absolutely linear relations.},
     journal = {Aequationes mathematicae},
     pages = {8--15},
     publisher = {mathdoc},
     volume = {21},
     year = {1980},
     zbl = {0451.39009},
     url = {http://geodesic.mathdoc.fr/item/AM2_1980__21_182410/}
}