Note on Weber’s parabolic cylinder function D n ( z ) and its associated equations (functional differential) Hari das Bagchi; Phatik Chand Chatterji — 1951 Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
Note on certain functional equations, connected with Hermite and Weber functions Hari das Bagchi; Phatik Chand Chatterji — 1952 Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
On a (third) functional equation, connected with the Weierstrassian function ℘ z . Hari das Bagchi; Phatik chand Chatterji — 1951 Bollettino dell'Unione Matematica Italiana