@article{MZ_1962__80_170098,
     author = {Arne Magnus},
     title = {Expansion of power series into {P-fractions.}},
     journal = {Mathematische Zeitschrift},
     pages = {209--216},
     publisher = {mathdoc},
     volume = {80},
     year = {1962},
     zbl = {0106.28202},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__80_170098/}
}