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Here is a good source of info to start with............http://www.feine-klingen.de/PDFs/verhoeven.pdf

He also has other pubs so look them up & read them. He is not the b'all endall but it is a...

I agree with Bruno & Sharptonn.

I tried to say the same thing in your other thread but somehow you missed it.
Independent study is what it used to be called. Perhaps now it is called research....