This is an interesting powerpoint presentation and with a good bit of citations. There is some info that I am sure many would not agree.
http://roth-communications.com/MP3/SanJose1640/1640-0970-GS04a.pdf
This is an interesting powerpoint presentation and with a good bit of citations. There is some info that I am sure many would not agree.
http://roth-communications.com/MP3/SanJose1640/1640-0970-GS04a.pdf