Damboldt, J. 1978: Campanula in P.H. Davis (ed.) Flora of Turkey. Vol. 6:2-64. -Edinburgh.
Davis, P.H. 1962: Materials for a Flora of Turkey: VI. Notes Roy. Bot. Gard. Edinb. 24(1): 19-33.
Nordenstam, B. 1989: Senecio in K.H. Rechinger Flora Iranica, no. 164: 59-95. -Graz.
Richardson, I.B.K. 1976: Bot. Journ. Linn. Soc. 71: 211-234.
)
