@article{MS2_1985__56_166921,
     author = {W.J. Thron and W.B. Jones and H. Waadeland},
     title = {Value regions for continued fractions {K(a.../1)} whose elements lie in parabolic regions.},
     journal = {Mathematica Scandinavica},
     pages = {5--14},
     publisher = {mathdoc},
     volume = {56},
     year = {1985},
     zbl = {0559.30003},
     url = {http://geodesic.mathdoc.fr/item/MS2_1985__56_166921/}
}