Miscellany 1) Prof. P.C.Boole and Prof. C.S.Wallace invite A.P.Ershov to a cocktail party (16.10.1980). 2) Boarding pass of British airways for the route Singapore-London (19.10.1980). 3) Boarding pass of British airways (a form). Date: 16.10.1980- 19.10.1980 Original document language: English Organizations: IFIP Persons: Andrei Petrovich Ershov, Peter C. Poole, Christofer S. Wallace
