København, Ejnar Munksgaard, 1964. 4to. In the original printed wrappers. Offprint from "Matematisk-fysisk Skfirter" udgivet af "Det Kongelig Danske Videnskabernes Selskab", Bind 2, 8. Very fine and clean. 60 pp.
Offprint of Winter's extensive paper on the quantum mechanical aspects of the Green function.
Order-nr.: 51348