Sepper, Priit2021-02-252021-02-252016https://dspace.tktk.ee/handle/20.500.12863/350LiigpingepiirikudMechanical Engineering--Electrical Engineering and Electrical Equipment--ElectronicsMehaanika--Elektrotehnika ja elektriseadmed--ElektroonikaElektritehnikaElectrical Engineeringlecture video