@article{10_4064_sm_69_1_59_68,
     author = {Joaquim Bruna},
     title = {On inverse-closed algebras of infinitely differentiable functions},
     journal = {Studia Mathematica},
     pages = {59--68},
     year = {1981},
     volume = {69},
     number = {1},
     doi = {10.4064/sm-69-1-59-68},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-69-1-59-68/}
}