@article{MM2_1975__15_154304,
     author = {David F. Findley},
     title = {Polyhomogeneous {Maps} and {Best} {Local} {Approximations} of {Degree} ... .},
     journal = {Manuscripta mathematica},
     pages = {1--32},
     publisher = {mathdoc},
     volume = {15},
     year = {1975},
     zbl = {0306.46057},
     url = {http://geodesic.mathdoc.fr/item/MM2_1975__15_154304/}
}