@article{AIF_1992__42_1-2_421_0, author = {Tsuboi, Takashi}, title = {Area functionals and {Godbillon-Vey} cocycles}, journal = {Annales de l'Institut Fourier}, pages = {421--447}, publisher = {Institut Fourier}, volume = {42}, number = {1-2}, year = {1992}, doi = {10.5802/aif.1298}, zbl = {0759.57019}, mrnumber = {94g:57032}, language = {en}, url = {http://archive.numdam.org/articles/10.5802/aif.1298/} }