[1]
Jana, R.K., Rapeli, S.J. and Shukla, A.K. 2017. Generalized Sheffer’s Classification and Their q-Analague. The Journal of the Indian Mathematical Society. 84, 3-4 (Jul. 2017), 201–210. DOI:https://doi.org/10.18311/jims/2017/14851.