@article{GDZPPN002218682,
title = {Polyhomogeneous Maps and Best Local Approximations of Degree ... .},
journal = {Manuscripta mathematica},
volume = {17},
year = {1975},
pages = {1-32},
zbl = {0306.46057},
url = {http://dml.mathdoc.fr/item/GDZPPN002218682}
}
Findley, David F. Polyhomogeneous Maps and Best Local Approximations of Degree ... .. Manuscripta mathematica, Tome 17 (1975) pp. 1-32. http://gdmltest.u-ga.fr/item/GDZPPN002218682/