TY - JOUR AU - Melzak, Z.A. TI - An Isoperimetric Inequality for Tetrahedra JO - Canadian mathematical bulletin PY - 1966 SP - 667 EP - 669 VL - 9 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-080-0/ DO - 10.4153/CMB-1966-080-0 ID - 10_4153_CMB_1966_080_0 ER -