Columbia subject headings:
Chatzēlazarou, Matsē--Correspondence.
Empeirikos, Andreas, 1901-1975--Correspondence.
Harvard subject headings:
Chatzēlazarou, Matsē--Correspondence.
Empeirikos, Andreas, 1901-1975--Correspondence.
Princeton subject headings:
Chatzēlazarou, Matsē--Correspondence.
Empeirikos, Andreas, 1901-1975--Correspondence.