- Supreme Court of Minnesota | Friday, August 20, 1982 | Cited 0 times
- District Court, N.D. Illinois | Thursday, October 26, 1989 | Cited 0 times
- Supreme Court of Minnesota | Friday, November 21, 1986 | Cited 0 times
- Illinois Supreme Court | Monday, May 20, 1991 | Cited 0 times
- Illinois Supreme Court | Friday, February 22, 1985 | Cited 0 times