no clue, maybe this link can be of help
http://www.432hz.nl/pages/linken.html
dutch, go intuitive..
http://www.niburu.nl/index.php?articleID=17481
don't know if this book has a chapter on harmonics, its good though
http://www.scribd.com/doc/8320/Rober...-Practice-1982
succes!
edit, okay, you are fast, solved it while i was posting..