@article{AIF_1979__29_3_239_0,
     author = {Beals, Richard},
     title = {$L^p$ and {H\"older} estimates for pseudodifferential operators: sufficient conditions},
     journal = {Annales de l'Institut Fourier},
     pages = {239--260},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {29},
     number = {3},
     year = {1979},
     doi = {10.5802/aif.760},
     mrnumber = {81c:47049},
     zbl = {0387.35065},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.760/}
}