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PROF. DR J . TBIBERGM

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TW. HAGliJS, A p r i l 2 , 1954
S l j z e n l n a n 41
Ppof. Perdlnando dl Fenlzlo,
Vla Faraetl 8,
Mllano

Dear Golleague>
After having sent the proofs back to you I
discovered that some further esq^lanatlon is needed about the
deduction of equation 12,1. I hope to send it to you during
the next few days, but want to annoimce It already,
YoroTS very sincerely.

I

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