Many thanks for your responses.
Ariel - Van Zonneveld's remarkable book is useful for all sorts of information, but not for this specific enquiry!
Kai- thank you. No bibliography will be as comprehensive as one could wish, but I'm doing my best to try for it.
Gavin - thank you, your response has spurred me on to contact a library or two for help with this. I'm afraid I was trying the lazy way first, in case one of the Forumites just happened to have this article in his or her files.
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