@article{AIF_1969__19_2_155_0,
     author = {Smith, J. W.},
     title = {Extending regular foliations},
     journal = {Annales de l'Institut Fourier},
     pages = {155--168},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {19},
     number = {2},
     year = {1969},
     doi = {10.5802/aif.325},
     zbl = {0176.21403},
     mrnumber = {42 #1143},
     language = {en},
     url = {https://aif.centre-mersenne.org/articles/10.5802/aif.325/}
}