Hi Ted, These guys work at Dupont Research Triangle Park in North Carolina. Dr. Sidney Cox's Number was (919)248-5024. The area codes are changing so rapidly across the US, I'm not sure this is still valid, but you might give it a try. Lots of luck, Les Connally [log in to unmask] > From: Ted F Myers <[log in to unmask]>, on 8/22/97 11:35 PM: > To All- I'm interested in contacting some folks from DuPont who > collaborated on an article in one of the trades concerning troubleshooting > PTH Voids. The authors were listed as: > > Karl Dietz > William Wilson > G. Sidney Cox > > Any help contacting them would be appreciated. > >