Dr. Christine Grahamer
																									
										München, 																	
																				Germany									
 
																																		
																									
																									
																
							Simon Stähli
																									
										Urdorf, 																	
																				Switzerland									
 
																																		
																									
																								
							Drs. A.D. Steenkamp
																									
										Leiden, 																	
																				Netherlands									
 
																																		
																									
																									
																
							Robert Schoisengeier
																									
										Wien, 																	
																				Austria									
 
																																		
																									
																									
																
							Carl Blomgren
																									
										Petaluma, 																	
										CA, 										United States									
 
																																		
																									
																								
							George Krzyminski
																									
										Bolivia, 																	
										NC, 										United States									
 
																																		
																									
																									
																
							David Clarke
																									
										Norwich, 																	
																				United Kingdom									
 
																																		
																									
																									
																
							Philip D. Burden
																									
										Chalfont St Giles, 																	
										Herts, 										United Kingdom									
 
																																		
																									
																									
																
							Cooper Hay
																									
										Glasgow, 																	
										Scotland, 										United Kingdom									
 
																																		
																									
																								
							 
									