M Duong-Van, HC Wen, M Crane, TJ Pavel - US Patent 7,551,560, 2009 - Google Patents
5,367,523 A 11/1994 Chang et al. 5,400,329 A 3, 1995 Tokura et al. 5,426,640 A 6/1995
Hlushy et al. 5.439. 483. A 8/1995 Duong-Van 5,583,792 A 12/1996 Li et al. 5,646,943 A 7 …