Ursula Block – Edith Devaissier, author of the stylized signature – Nathalie Forget – René Block – Robert Piencikowski – Paul Sacher Foundation (Basle) – Dimitri Vicheney
Internet domain name: ivan-wyschnegradsky.fr
Property: The present Internet site is published by the Association Ivan Wyschnegradsky, 106 boulevard Lefèvre, 93600 Aulnay-sous-Bois. All rights reserved.
Any unauthorized reproduction, even partial, of constituent elements of the website constitutes an infringement punishable by legal sanctions. The offender risks civil and penal sanctions, in particular the penalties provided for in articles L. 335.2 and L. 343.1 of the Intellectual Property code.
Editor in chief: Martine Joste
Photo credits: Charles Amirkhanian, René Block, Eric Legrand, Hans-Rudolf Roth, Paul Sacher Foundation
Hosting: Likuid Communications, M13714 BOUL. Curé-Labelle, CP 1063, Mirabel, Québec, Canada
Website design: Frédéric Bertrand