@article{AM2_1990__40_1_137358,
     author = {Martin Cadek and Jaromir Simsa},
     title = {Decomposable functions of several variables.},
     journal = {Aequationes mathematicae},
     pages = {8--25},
     year = {1990},
     volume = {40},
     number = {1},
     zbl = {0762.26011},
     url = {http://geodesic.mathdoc.fr/item/AM2_1990__40_1_137358/}
}