Heidel, W. a._qualitative Change in Pre-Socratic Philosophy_1906_AGPh, 19, 3, Pp. 333-379
Merlan, Philip_τὸ τί ἦν εἶναι_1966_CPh, 61, 3, p. 188
Veazie, Walter B._The Word ΦΥΣΙΣ_1921_AGPh, 33, 1-2, pp. 3-22
Schenkeveld, Dirk M._Prose Usages of Ἀκούειν To Read_1992_CQ, 42, 1, pp. 129-141
Fritz, Kurt von_Νόος and νοεῖν in the Homeric Poems_1943_CPh, 38, 2, pp. 79-93
