For more information about the typology, I refer to my first book: Beauté fatale, 1992.
For the Sickleweapons we refer to the Volume III of the Sickleweapons, 2000.
Concerning the birdheaded throwing knives, these are better classified with the axes but since
they definitely evolved out of throwing knives, I see no harm in placing them together with
the latter.