1. 7. Liptai, K. Fibonacci balancing numbers. Fibonacci Quarterly 2004, 42(4), 330-340. 398
2. 8. Liptai, K. Lucas balancing numbers. Acta Math. Univ. Ostrav. 2006, 14(1), 43-47. 399
3. 9. Panda, G.K.; Rout, S.S. Gap balancing numbers. Fibonacci Quarterly 2013, 51(3), 239-248. 400
4. 10. Rout, S.S.; Panda, G.K. k -Gap balancing numbers. Periodica Mathematica Hungarica 2015 , 70(1), 401
5. 109-121. 402