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* http://forum.fonarevka.ru/showthread.php?t=20782
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* http://budgetlightforum.com/node/799?page=27#comment-744725
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* Author: Tamagotchi http://tamagotchi-007.livejournal.com/
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* http://avr.tamatronix.com
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* Optimization: DooMmen http://doommen.blogspot.com/
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* vdavid http://forum.fonarevka.ru/member.php?u=20922