| RefNo | Title | Date |
| HB/K/12814 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12804 | Bulletin \ Fourth International Ballet Competition, Varna, Bulgaria | 1968 |
| HB/K/12848 | Bulletin \ Sixteenth International Ballet Competition, Varna, Bulgaria | 1994 |
| HB/K/12847 | Bulletin \ Sixteenth International Ballet Competition, Varna, Bulgaria | 1994 |
| HB/K/12802 | Bulletin \ Fourth International Ballet Competition, Varna, Bulgaria | 1968 |
| HB/K/12831 | Bulletin \ Tenth International Ballet Competition, Varna, Bulgaria | 1980 |
| HB/K/12803 | Bulletin \ Fourth International Ballet Competition, Varna, Bulgaria | 1968 |
| HB/K/12822 | Bulletin \ Eighth International Ballet Competition, Varna, Bulgaria | 1976 |
| HB/K/12819 | Bulletin \ Seventh International Ballet Competition, Varna, Bulgaria | 1974 |
| HB/K/12821 | Bulletin \ Seventh International Ballet Competition, Varna, Bulgaria | 1974 |
| HB/K/12805 | Bulletin \ Fourth International Ballet Competition, Varna, Bulgaria | 1968 |
| HB/K/12811 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12829 | Bulletin \ Ninth International Ballet Competition, Varna, Bulgaria | 1978 |
| HB/K/12817 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12843 | Bulletin \ Fifteenth International Ballet Competition, Varna, Bulgaria | 1992 |
| HB/K/12837 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12842 | Bulletin \ Fifteenth International Ballet Competition, Varna, Bulgaria | 1992 |
| HB/K/12844 | Bulletin \ Sixteenth International Ballet Competition, Varna, Bulgaria | 1994 |
| HB/K/12836 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12840 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12839 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12841 | Bulletin \ Fifteenth International Ballet Competition, Varna, Bulgaria | 1992 |
| HB/K/12835 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12826 | Bulletin \ Eighth International Ballet Competition, Varna, Bulgaria | 1976 |
| HB/K/12818 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12846 | Bulletin \ Sixteenth International Ballet Competition, Varna, Bulgaria | 1994 |
| HB/K/12845 | Bulletin \ Sixteenth International Ballet Competition, Varna, Bulgaria | 1994 |
| HB/K/12834 | Bulletin \ Tenth International Ballet Competition, Varna, Bulgaria | 1980 |
| HB/K/12808 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12810 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12806 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12838 | Bulletin \ Eleventh International Ballet Competition, Varna, Bulgaria | 1983 |
| HB/K/12832 | Bulletin \ Tenth International Ballet Competition, Varna, Bulgaria | 1980 |
| HB/K/12824 | Bulletin \ Eighth International Ballet Competition, Varna, Bulgaria | 1976 |
| HB/K/12807 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12816 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12827 | Bulletin \ Ninth International Ballet Competition, Varna, Bulgaria | 1978 |
| HB/K/12825 | Bulletin \ Eighth International Ballet Competition, Varna, Bulgaria | 1976 |
| HB/K/12809 | Bulletin \ Fifth International Ballet Competition, Varna, Bulgaria | 1970 |
| HB/K/12813 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12812 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12815 | Bulletin \ Sixth International Ballet Competition, Varna, Bulgaria | 1972 |
| HB/K/12828 | Bulletin \ Ninth International Ballet Competition, Varna, Bulgaria | 1978 |
| HB/K/12823 | Bulletin \ Eighth International Ballet Competition, Varna, Bulgaria | 1976 |
| HB/K/12833 | Bulletin \ Tenth International Ballet Competition, Varna, Bulgaria | 1980 |
| HB/K/12830 | Bulletin \ Ninth International Ballet Competition, Varna, Bulgaria | 1978 |
| HB/K/12820 | Bulletin \ Seventh International Ballet Competition, Varna, Bulgaria | 1974 |