00261nam a2200109Ia 4500082001400000100003000014245005700044260000900101300000900110500000500119700002700124  a510bR215  aRao, S. B. and Rao, A. R.  aNumber of cut vertices and cut areas in a diagraphb  c1969  a28p.  a  aRao, A. R. ; jt. auth.