[1] Ohio State Univ, Columbus, OH 43210 USA
[2] Michigan State Univ, E Lansing, MI USA
[3] Univ Massachusetts Amherst, Amherst, MA 01003 USA
[4] Manhattan Coll, New York, NY USA
[5] Univ British Columbia, Vancouver, BC, Canada
[6] Mississippi State Univ, Mississippi State, MS USA
[7] Williams Coll, Williamstown, MA 01267 USA
[8] Colorado State Univ, Ft Collins, CO USA
[9] Univ Michigan, Ann Arbor, MI USA