Roman mimbers designate the volumes:
I —
1960
VI —
1965
XI —
1970
II-
1961
VII —
1966
XII —
1971
III—
1962
VIII —
1967
XIII —
1972
IV —
1963
IX —
1968
XIV —
1973
V —
1964
X —
1969
XV —
1974
Arab numbers refer to pages
I —
1960
VI —
1965
XI —
1970
II-
1961
VII —
1966
XII —
1971
III—
1962
VIII —
1967
XIII —
1972
IV —
1963
IX —
1968
XIV —
1973
V —
1964
X —
1969
XV —
1974
Arab numbers refer to pages