@incollection{MSMF_1969__19__26_0,
     author = {M\'ela, Jean-Fran\c{c}ois},
     title = {Approximation diophantienne et ensembles lacunaires},
     booktitle = {Contributions \`a la th\'eorie des s\'eries trigonom\'etriques et \`a la th\'eorie des nombres},
     series = {Bulletin de la Soci\'et\'e math\'ematique de France. M\'emoire},
     pages = {26--54},
     year = {1969},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {19},
     doi = {10.24033/msmf.21},
     mrnumber = {58 #29782},
     zbl = {0198.09404},
     url = {https://www.numdam.org/articles/10.24033/msmf.21/}
}