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Avatar Florin Serbu
Istoria fizicii
par Florin Serbu, Sunday 9 June 2019, 21:34
 
Avatar Florin Serbu
Istoria Matematicii
par Florin Serbu, Sunday 9 June 2019, 21:32
 
Avatar Florin Serbu
lefo.wikispaces.com
par Florin Serbu, Saturday 15 September 2018, 18:25
 

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/