On The Center Sets and Center Numbers of Some Graph Classes. - R. Ram Kumar; Kannan Balakrishnan; Manoj Changat; A. Sreekumar; Prasanth G. Narasimha-Shenoi (CoRR, 2013)

Fair Sets of Some Class of Graphs - R. Ram Kumar; Kannan Balakrishnan; Prasanth G. Narasimha-Shenoi (CoRR, 2013)

On the Center Sets of Some Graph Classes. - Manoj Changat; Kannan Balakrishnan; R. Ram Kumar; G. N. Prasanth; A. Sreekumar (CALDAM, 2016)

Directed graphs and its Boundary Vertices. - Manoj Changat; Prasanth G. Narasimha-Shenoi; Mary Shallet T. J; R. Ram Kumar (CoRR, 2016)