Plamen.

1960 no.1-6; 1960 no.6012; v.2:1-6 (Jan.-June 1960); v.2:7-12 (July-Dec. 1960); 1961 no.7-12; 1961 no.106; 1962no1-6 1962; 1962 no.1-5; 1962 no.7-12; 1963 no.3-6; 1963 no.8-12; 1964 no.1-6; 1964 no.7-12; 1965 no.1-6; 1965 no.7-12; v.7:1-4 (Jan.-Apr. 1965); v.7:5-8 (May-Aug. 1965); v.7:9-12 (Sept.-Dec. 1965; 1966 no.1-6; v.8:1-4 (Jan.-Apr. 1966); v.8:5-8 (May-Aug. 1966); v.8:9-12 (Sept.-Dec. 1966; 1967 no.1-6; 1967 no.7-12; v.9:1-6 (Jan.-June 1967); v.9:7-12 (July-Dec. 1967); 1968 no.1-6; 1968 no.7-12; v.10:7-12 (July-Dec. 1968; 1969 no.1-4; 1969 no.117; v.11:1-5