@article{1077380112, author = {Verma, Arun}, title = {On $\sigma$ -type polynomials generated by $A(t)\psi (xH(t))$}, journal = {Duke Math. J.}, volume = {39}, number = {1}, year = {1972}, pages = { 149-152}, language = {en}, url = {http://dml.mathdoc.fr/item/1077380112} }
Verma, Arun. On $\sigma$ -type polynomials generated by $A(t)\psi (xH(t))$. Duke Math. J., Tome 39 (1972) no. 1, pp. 149-152. http://gdmltest.u-ga.fr/item/1077380112/