Book by Nikos Manousakis reviewed by Peter Barrios-Lech, University of Massachusetts Boston, at Bryn Mawr Classical Review. [link added -ed.]
"Manousakis, with the help of a variety of computer-aided calculations, shows that Aeschylean authorship of Prometheus Bound is very highly unlikely. Mark Griffith had already made the case against Aeschylean authorship, and after the publication of Griffith’s book in 1977 (The Authenticity of the Prometheus Bound), the burden of proof was now with those—few in number to be sure—who would argue that Aeschylus wrote Pr. ...A subsidiary argument for the dating of the Prometheus Bound to the decade 440-430 BCE convinces, though cannot be conclusive."
See Aeschylus, Great Books of the Western World (first edition, 52 Vol., 1952) volume 5, (second edition, 60 Vol., 1990) volume 4.