[Lingo] Development of Kana?

[Niels Kobschätzki <n.kobschaetzki@example.com>]

Hi!

Does anyone here has by any chance some idea where I can get reliable and citable information (so to speak: not the wikipedia) about the development of hiragana and katakana? I found a paper on Man'yogana but nothing really on the nowadays used scripture :(
An electronic resource would be best :)

Thanks in advance,

Niels

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