Columbia subject headings:
Mural painting and decoration, Bulgarian.
Mural painting and decoration, Byzantine--Bulgaria.
Philosophers, Ancient, in art.
Poets, Greek, in art.
Harvard subject headings:
Mural painting and decoration, Byzantine--Bulgaria.
Princeton subject headings:
Mural painting and decoration, Bulgarian.
Mural painting and decoration, Byzantine--Bulgaria.
Philosophers, Ancient--Art.
Poets, Greek--Art.