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 |                                                         Installation: June 1st, 2006 Last update: April 1st, 2020 |       The website has been arranged by Bernhard Gerth Address: Ewald Gerth, Gontardstr. 130, D-14471 Potsdam, Germany Telephone: +49 331 973826     E-Mail: ewald-gerth@t-online.de 
             
 Links to other fields of research: Schwarzschild law | Photo-process | Photo-kinetics | Double exposures | Commutativity | Reaction kinetics | Reaction tensors | | ||