1. Vladimir Arnol'd, Sur une propriété topologique des applications globalement canoniques de lamécanique classique, C. R. Acad. Sci. Paris, 261 (1965), 3719–3722.
2. John A. Baldwin and John B. Etnyre, Admissible transverse surgery does not preserve tightness, Math. Ann., 357(2) (2013), 441–468.
3. Daniel Bennequin, Emplacements ét equations de Pfaff, In Third Schnepfenried geometry conference, Vol. 1 (Schnepfenried, 1982), volume 107 of Asterisque, pages 87–161. Soc. Math. France, Paris, 1983.
4. George D. Birkhoff, Proof of Poincaré's geometric theorem, Trans. Amer. Math. Soc., 14(1) (1913), 14–22.
5. W. M. Boothby and H. C. Wang, On contact manifolds, Ann. of Math. (2), 68 (1958), 721–734.