Horwitz, Steve
Fall 2011 · Volume 27, Number 1 · pp. 9–27
Mulligan, Robert F.
Fall 2005 · Volume 21, Number 1 · pp. 59–91
Maitland, Ian; Umezu, Mitsuhiro
Spring 2006 · Volume 22, Number 2 · pp. 131–164
Graves, Philip E.
Spring 2004 · Volume 19, Number 2 · pp. 43–60