Boxicity of series-parallel graphs. - Ankur Bohra; L. Sunil Chandran; J. Krishnam Raju (Discret. Math., 2006)

Hadwiger Number and the Cartesian Product of Graphs. - L. Sunil Chandran; Alexandr V. Kostochka; J. Krishnam Raju (Graphs Comb., 2008)