TY - JOUR AU - Natsume, Toshikazu TI - THE C 1-Invariance of the Godbillon-Vey Map in Analytical K-Theory JO - Canadian journal of mathematics PY - 1987 SP - 1210 EP - 1222 VL - 39 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1987-061-8/ DO - 10.4153/CJM-1987-061-8 ID - 10_4153_CJM_1987_061_8 ER -