@article{AM2_1997__53_1-2_137678,
     author = {Lutz G. Lucht},
     title = {Arithmetical sequences and systems of functional equations.},
     journal = {Aequationes mathematicae},
     pages = {73--90},
     publisher = {mathdoc},
     volume = {53},
     number = {1-2},
     year = {1997},
     zbl = {0881.39021},
     url = {http://geodesic.mathdoc.fr/item/AM2_1997__53_1-2_137678/}
}