@article{CRMATH_2005__340_1_43_0,
     author = {Thomas Vogel},
     title = {A construction of {Engel} structures},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {43--48},
     publisher = {Elsevier},
     volume = {340},
     number = {1},
     year = {2005},
     doi = {10.1016/j.crma.2004.11.011},
     language = {en},
}