IBM ans Astrodome Club visitor's passes, Jordan Marsh Company's business card

of the Soviet authors cited by Knuth in his books

of the Computer Science Colloquium where Ershov was to speak

of Ershov's lectures in memory optimization in abstract programs

of the discussion on parallel programming

woth a name and address

of the general ballot, county of Santa Clara

with the authographs of the dinner participants on the back

of A.P. Ershov's lecture on joint inplementation of algol 68, PL/1 and SIMULA 67

of Ershov's presentation "Computer science in Novosibirsk"

of the Courant Institute

of Ershov's visit to the USA

of A.P. Ershov's lecture on joint inplementation of algol 68, PL/1 and SIMULA 67

of Ershov's visit to the USA

for Prof. Ershov's visit to the Center of Advanced Computation at the U. of Illinois