Operator of this web presence and responsible for the German- and French-speaking part of the content is (natury.de):
Dr. Helmut Schultze · Wilhelmstr. 7 · D-59269 Beckum · Germany
Responsible for the part of the content in English of the website (natury.info) is:
Drs. (MA) Guido Frijns · Im Blumental 12 · D-52538 Selfkant-Tüddern · Germany
Translation into English: Bernard, Guido, John, Rainer
