References
- Burleigh , R. , Matthews , K. and Ambers , J. 1982 . British Museum natural radiocarbon measurements XIV . Radiocarbon , 24 ( 3 ) : 229 – 261 .
- Larsson , S.G. 1978 . Baltic Amber, a Palaeobiological Study , Klampenborg : Scandinavian Science Press . (Entomonograph, volume 1).