[1] MIT,CAMBRIDGE,MA 02139
[2] UNIV CAMBRIDGE,CAMBRIDGE,ENGLAND
[3] IIT,CHICAGO,IL 60616
[4] UNIV ILLINOIS,URBANA,IL 61801
[5] INDIANA UNIV,BLOOMINGTON,IN 47401
[6] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218
[7] UNIV MONS,B-7000 MONS,BELGIUM
[8] CATHOLIC UNIV NIJMEGEN,NIJMEGEN,NETHERLANDS
[9] OAK RIDGE NATL LAB,OAK RIDGE,TN 37830
[10] UNIV PADUA,I-35100 PADUA,ITALY
[11] UNIV PAVIA,I-27100 PAVIA,ITALY
[12] UNIV ROME,I-00100 ROME,ITALY
[13] RUTGERS STATE UNIV,NEW BRUNSWICK,NJ 08903
[14] STEVENS INST TECHNOL,HOBOKEN,NJ 07030
[15] TECHNION ISRAEL INST TECHNOL,HAIFA,ISRAEL
[16] TEL AVIV UNIV,RAMAT AVIV,ISRAEL
[17] UNIV TENNESSEE,KNOXVILLE,TN 37916
[18] UNIV TRIESTE,I-34127 TRIESTE,ITALY
[19] WEIZMANN INST SCI,REHOVOT 76100,ISRAEL
[20] YALE UNIV,NEW HAVEN,CT 06520