[1] UNIV ARKANSAS, FAYETTEVILLE, AR 72701 USA
[2] LOUISIANA STATE UNIV, BATON ROUGE, LA 70803 USA
[3] UNIV TENNESSEE, KNOXVILLE, TN 37916 USA
[4] TENNESSEE STATE UNIV, NASHVILLE, TN 37203 USA
[5] VIRGINIA POLYTECH INST & STATE UNIV, BLACKSBURG, VA 24061 USA
[6] N CAROLINA STATE UNIV, RALEIGH, NC USA
[7] UNIV GEORGIA, ATHENS, GA 30602 USA
[8] AUBURN UNIV, AUBURN, AL 36830 USA
[9] WINTHROP COLL, ROCK HILL, SC 29733 USA
[10] TEXAS A&M UNIV, COLLEGE STN, TX 77843 USA