TY - JOUR AU - Yun, Jong-Gug TI - Mean Curvature Comparison with ${{L}^{1}}$ -norms of Ricci Curvature JO - Canadian mathematical bulletin PY - 2004 SP - 314 EP - 320 VL - 47 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-030-0/ DO - 10.4153/CMB-2004-030-0 ID - 10_4153_CMB_2004_030_0 ER -