Nicolas Lieng
Paris,
France
Léon Aichelbaum
Paris,
France
Lucia Di Maio (proprietor)
Milano,
MI, Italy
Mikhail Burmistrov
France
Giulio Maffei
Torino,
TO, Italy
Michael Fagan
Newton,
United States
Dr. Philipp S. Penka
Berlin,
Germany
Philippe Luiggi
Bruxelles,
Belgium
Larry S. Zeman
Laguna Beach,
CA, United States
Pontus Soldén
Stockholm,
Sweden