@article{AM2_1977__16_136679,
     author = {J.H. Loxton and A.J. van der Poorten},
     title = {A class of hypertranscendental functions.},
     journal = {Aequationes mathematicae},
     pages = {93--106},
     publisher = {mathdoc},
     volume = {16},
     year = {1977},
     zbl = {0384.10014},
     url = {http://geodesic.mathdoc.fr/item/AM2_1977__16_136679/}
}