On Control Memory Minimization in Microprogrammed Digital Computers. - S. R. Das; Dilip K. Banerji; A. Chattopadhyay (IEEE Trans. Computers, 1973)

An investigation of the relationship between the CME and the Geomagnetic Storm. - A. Chattopadhyay; Mofazzal Hossain Khondekar (Astron. Comput., 2023)