Dr. Ulrich Drüner
Stuttgart,
Germany
Marion Neugebauer
Bernried am Starnberger See,
Germany
Karoly Antal
Budapest,
Hungary
Nancy L. McGlashan
Kew Gardens,
NY, United States
David R. Meeker
Sacramento,
CA, United States
Edward D. Nudelman
Seattle,
United States
Aristóteles T. Alencar
São Paulo,
SP, Brazil
Ronald L. Cozzi
N. Tonawanda,
NY, United States
Julia Rosenthal
Oxfordshire,
United Kingdom
Paul Melzer
Redlands,
MD, United States
Paul Rassam
Charlbury,
United Kingdom