@article{BSMF_2006__134_4_559_0,
     author = {Lerner, Nicolas},
     title = {Cutting the loss of derivatives for solvability under condition $(\Psi )$},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {559--631},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {134},
     number = {4},
     year = {2006},
     doi = {10.24033/bsmf.2522},
     mrnumber = {2364944},
     zbl = {1181.35355},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.2522/}
}