1. A. Behera, G.K. Panda, On the square roots of triangular numbers, Fibonacci Quarterly 37(2) (1999) 98-105.
2. G.K. Panda, P.K. Ray, Cobalancing numbers and cobalancers, International Journal of Mathematics and Mathematical Sciences 8 (2005) 1189-2000.
3. P.K. Ray, Balancing and cobalancing numbers (Thesis(PhD)), Department of Mathematics National Institute of Technology 2009.
4. G.K. Panda, Some fascinating properties of balancing numbers, Congressus Numerantium 194 (2009) 185-189.
5. G.K. Panda, P.K. Ray, Some links of balancing and cobalancing numbers with Pell and associated Pell numbers, Bulletin of the Institute of Mathematics Academia Sinica(New Series) 6(1) (2011) 41-72.