<code>
@Book{zantis2011stromversorgung1,
 author = {Zantis, Franz Peter},
 title = {Stromversorgung ohne Stress : [Band 1, Grundlagen]},
 publisher = {Elektor},
 year = {2011},
 address = {Aachen},
 isbn = {9783895762482},
 lang = {de},
 sign = {11/00140},
 gbv = {53.35},
 rvk = {},
 url = {http://www.elektor.de/products/books/electronics/stromversorgung-ohne-stress.1906882.lynkx},
 thumb = {http://www.elektor.de/Uploads/2011/8/StromOhneStressBd1.jpg}
}
@Book{bernstein2011stromversorgungen,
 author = {Bernstein, Herbert},
 title = {Stromversorgungen in der Praxis : [ungeregelte und längsgeregelte Netzgeräte ; IC-Linear- und Schaltregler ; Flusswandler ; DC/DC- und DC/AC-Wandler]},
 publisher = {Elektor},
 year = {2011},
 address = {Aachen},
 isbn = {9783895762390},
 lang = {de},
 sign = {11/00099},
 gbv = {53.35},
 rvk = {},
 url = {http://www.elektor.de/products/books/electronics/stromversorgungen-in-der-praxis.1817953.lynkx},
 thumb = {http://www.elektor.de/Uploads/2011/5/Stromversorgungen-in-der-Praxis.jpg}
}
@Book{jungnickel1974stromversorgung,
 author = {Mennenga, Horst},
 title = {Stromversorgung elektronischer Geräte},
 publisher = {Verlag Technik},
 year = {1974},
 address = {Berlin, DDR},
 isbn = {},
 lang = {de},
 sign = {11/00132},
 gbv = {53.35},
 rvk = {},
 url = {},
 thumb = {http://altkrimi.antiquariatsportal.de/bild/10747~708053.jpg}
}
@Book{streng1972stromversorgungstechnik,
 author = {Streng, Klaus K.},
 title = {abc der Stromversorgungstechnik},
 publisher = {Militärverl. d. Dt. Demokrat. Republik},
 year = {1972},
 address = {Berlin, DDR},
 isbn = {},
 lang = {de},
 sign = {11/00133},
 gbv = {53.35},
 rvk = {},
 url = {},
 thumb = {http://www.oldtimeradio.de/Bilder/Modelle/BU/BU7203-01.jpg}
}
</code>