<code>
@Book{douglass2011design,
 author = {Douglass, Bruce},
 title = {Design patterns for embedded systems in C},
 publisher = {Newnes/Elsevier},
 year = {2011},
 address = {Oxford Burlington, MA},
 isbn = {9781856177078},
 lang = {en},
 sign = {13/00142},
 gbv = {54.51},
 rvk = {ST 230},
 url = {https://www.elsevier.com/books/design-patterns-for-embedded-systems-in-c/douglass/978-1-85617-707-8},
 thumb = {https://secure-ecsd.elsevier.com/covers/80/Tango2/large/9781856177078.jpg}
 }
@Book{samek2009practical,
 author = {Samek, Miro},
 title = {Practical UML statecharts in C/Cpp},
 publisher = {Newnes/Elsevier},
 year = {2009},
 address = {Amsterdam Boston},
 isbn = {9780750687065},
 lang = {en},
 sign = {13/00143},
 gbv = {54.51},
 rvk = {ST 250 C01-C80},
 url = {https://www.elsevier.com/books/practical-uml-statecharts-in-c-c/samek/978-0-7506-8706-5},
 thumb = {https://secure-ecsd.elsevier.com/covers/80/Tango2/large/9780750687065.jpg}
 }
@Book{stevens2005advanced,
 author = {Stevens, W. Richard},
 title = {Advanced programming in the Unix environment},
 publisher = {Addison-Wesley},
 year = {2005},
 address = {Upper Saddle River, NJ},
 isbn = {9780201433074},
 lang = {en},
 sign = {},
 gbv = {54.51},
 rvk = {ST 250 C01},
 url = {http://www.amazon.de/dp/0321637739},
 thumb = {http://ecx.images-amazon.com/images/I/5160yLwNOZL.jpg},
%url = {http://www.addison-wesley.de/0201433079.html},
%thumb = {http://www.addison-wesley.de/media_local/shop_u1bigs_3D/9780201433074.jpg},
 wishlist = {yes}
}
@Book{butenhof1997programming,
 author = {Butenhof, David},
 title = {Programming with POSIX threads},
 publisher = {Addison-Wesley},
 year = {1997},
 address = {Reading, Mass},
 isbn = {9780201633924},
 lang = {en},
 sign = {},
 gbv = {54.51},
 rvk = {ST 230},
 url = {http://www.amazon.de/dp/0201633922},
 thumb = {http://ecx.images-amazon.com/images/I/51qv8sLxWRL.jpg},
%url = {http://www.addison-wesley.de/0201633922.html},
%thumb = {http://www.addison-wesley.de/media_local/shop_u1bigs/9780201633924.jpg},
 wishlist = {yes}
}
</code>