@article{MS2_1981__49_166770,
     author = {Tuomas Sorvali and Rauno Aulaskari},
     title = {On rotation-automorphic functions.},
     journal = {Mathematica Scandinavica},
     pages = {222--228},
     publisher = {mathdoc},
     volume = {49},
     year = {1981},
     zbl = {0475.30037},
     url = {http://geodesic.mathdoc.fr/item/MS2_1981__49_166770/}
}