Dear list,
Without being intended to be related to this thread, I just received an email from Dylan Esler informing me that the volumes of the  ‘Buddhist Forum’ (ed. Dr. Tadeusz Skorupski) are available here :
among which
K. R. Norman, A Philological Approach to Buddhism (The Buddhist Forum  vol. 5)
http://www.shin-ibs.edu/publications/the-buddhist-forum/the-buddhist-forum-volume-v/
which deals with the question of the Buddhavacana on several pages.
Best wishes,
Christophe

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