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D272461 | Burns | Jan 1984 | |
D340755 | Shearer | Oct 1993 | |
D360450 | Louden et al. | Jul 1995 | |
D384719 | Fazekas | Oct 1997 | |
D385323 | Horton | Oct 1997 | |
D390904 | Newbold et al. | Feb 1998 | |
4386774 | Buckman | Jun 1983 | |
5199573 | Gribovsky | Apr 1993 | |
5529299 | Bellagamba | Jun 1996 |