Dunkel 1979: G. Dunkel, Preverb repetition, MSS 38 1979 41-82.
Dunkel 1981: G. Dunkel, Mycenaean and central Greek, Kadmos 20 1981 132-142.
Dunkel 1985: G. E. Dunkel, IE hortatorys *éy, +éyte : Ved. éta...stávāma, Hitt. ehu=wa it, Hom. εἰ d᾿ ἄγε, MSS 46 1985 47-79.