Posidonius
| Author(s) | Title | Reference | |
|---|---|---|---|
| Michael Tierney | The Oldest Irish Tradition: A Window on the Iron Age, by Kenneth Hurlstone Jackson | 34/3, p. 234 | |
| J.S. McKINNELL | Myths and Symbols in Pagan Europe: Early Scandinavian and Celtic Religions, by H. R. Ellis Davidson | 61/2, p. 312 |