Changes

==Past==

==Past==

Alexander was born in 1976 in Saarbrücken, Germany.  

Alexander was born in 1976 in Saarbrücken, Germany.  

From 1983 to 1986, he attended the German Embassy School in Addis Abeba/Ethiopia. Later he attended the secondary school Gymnasium Schloß Hagerhof in Bad Honnef/Germany and the German School "Collegio Mariscal Braun" in La Paz/Bolivia.

From 1983 to 1986, he attended the German Embassy School in Addis Abeba/Ethiopia. Later he attended the secondary school Gymnasium Schloß Hagerhof in Bad Honnef/Germany and the German School "Collegio Mariscal Braun" in La Paz/Bolivia.

From 1996 to 2001 he studied physics and computer science at the University of Saarland.<ref> Alexander Siffrin[http://person.yasni.de/alexander+siffrin+110895]</ref><ref>Universität des Saarlandes[http://www.uni-saarland.de/info/schueler/studieren/studienfaecher/matheundinformatik/informatik/siffrin.html]</ref>

 

From 1996 to 2001, he studied Physics and Computer Science at the University of Saarland.<ref> Alexander Siffrin[http://person.yasni.de/alexander+siffrin+110895]</ref><ref>Universität des Saarlandes[http://www.uni-saarland.de/info/schueler/studieren/studienfaecher/matheundinformatik/informatik/siffrin.html]</ref>

==References==

==References==