TY - JOUR AU - Seaman, Walter TI - The third Betti number of a positively pinched riemannian six manifold JO - Annales de l'Institut Fourier PY - 1986 SP - 83 EP - 92 VL - 36 IS - 2 PB - Institut Fourier PP - Grenoble UR - http://archive.numdam.org/articles/10.5802/aif.1049/ DO - 10.5802/aif.1049 LA - en ID - AIF_1986__36_2_83_0 ER -