John O'Mara
Bockris

Texas A & M


Brian Evans
Conway

University of Ottawa


N. B.
Chapman

University Hull


Jim H. P.
Utley

University of London - Queen Mary College




Fritz
Straus

University of Breslau












CLAUDIO LUIS
DONNICI

Universidade Federal de Minas Gerais (UFMG)

Lauris Lucia
Silva

Universidade Federal de Minas Gerais (UFMG)
(Options)

Lauris SilvaX