A note on the Hadwiger number of circular arc graphs. - N. S. Narayanaswamy; Naveen Belkale; L. Sunil Chandran; Naveen Sivadasan (Inf. Process. Lett., 2007)

Hadwiger's conjecture for proper circular arc graphs. - Naveen Belkale; L. Sunil Chandran (Eur. J. Comb., 2009)