@article{PMIHES_1979__50__73_0,
     author = {Williams, Robert F.},
     title = {The structure of {Lorenz} attractors},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {73--99},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {50},
     year = {1979},
     mrnumber = {82b:58055b},
     zbl = {0484.58021},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1979__50__73_0/}
}