PERSEE Program, 1959

Muzeul National de Istorie a Romaniei, 2000

Muzeul National de Istorie a Romaniei, 1997

Institute of Electrical and Electronics Engineers (IEEE), 1986

Institute of Electrical and Electronics Engineers (IEEE), 1986

Institute of Electrical and Electronics Engineers (IEEE), 1986

PERSEE Program, 1980

Cambridge University Press (CUP), 1976

The American Historical Association, 1977

University of California Press, 1973

University of Chicago Press, 1966

The Mediaeval Academy of America, 1966

University of Chicago Press, 1965

Cambridge University Press (CUP), 1963

The Mediaeval Academy of America, 1965

American Association for the Advancement of Slavic Studies, 1963

University of Chicago Press, 1963

The University of Chicago Press, 1963

Informa UK Limited, 1960

PERSEE Program, 1962