Pierre Grimal, The Dictionary of Classical Mythology (Blackwell, 1986, 1996, originally published 1951 in French), pp. 311–312; Charles J. Adamec, "Genu, genus," Classical Philology 15 (1920), p. 199; J.G. Frazer, Pausanias's Description of Greece (London, 1913), vol. 4, p. 436; Marcel Le Glay, "Remarques sur la notion de Salus dans la religion romaine," La soteriologia dei culti orientali nell' imperio romano: Études préliminaires au religions orientales dans l'empire romain, Colloquio internazionale Roma, 1979 (Brill, 1982), p. 442.