@article{MAN_1989__285_1_164601,
     author = {Marco Thill},
     title = {Exponentially bounded indefinite functions.},
     journal = {Mathematische Annalen},
     pages = {297--308},
     publisher = {mathdoc},
     volume = {285},
     number = {1},
     year = {1989},
     zbl = {0661.46020},
     url = {http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164601/}
}