@article{AIF_1968__18_2_135_0,
     author = {Greenlee, Wilfred M.},
     title = {Rate of convergence in singular perturbations},
     journal = {Annales de l'Institut Fourier},
     pages = {135--191},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {18},
     number = {2},
     year = {1968},
     doi = {10.5802/aif.296},
     mrnumber = {39 #3133},
     zbl = {0175.40006},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.296/}
}