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Picture of Florin Serbu
Istoria fizicii
by Florin Serbu - Sunday, 9 June 2019, 9:34 PM
 
Picture of Florin Serbu
Istoria Matematicii
by Florin Serbu - Sunday, 9 June 2019, 9:32 PM
 
Picture of Florin Serbu
lefo.wikispaces.com
by Florin Serbu - Saturday, 15 September 2018, 6:25 PM
 

Vechea pagina de fizica de la lefo a fost inchisa. Mai jos un link catre ea in Internet Archives.

https://web.archive.org/web/20171224131636/http://lefo.wikispaces.com/