TY - JOUR AU - Tsuboi, Takashi TI - Area functionals and Godbillon-Vey cocycles JO - Annales de l'Institut Fourier PY - 1992 DA - 1992/// SP - 421 EP - 447 VL - 42 IS - 1-2 PB - Institut Fourier UR - http://archive.numdam.org/articles/10.5802/aif.1298/ UR - https://zbmath.org/?q=an%3A0759.57019 UR - https://www.ams.org/mathscinet-getitem?mr=94g:57032 UR - https://doi.org/10.5802/aif.1298 DO - 10.5802/aif.1298 LA - en ID - AIF_1992__42_1-2_421_0 ER -