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WikiPedia: Số_La_Mã http://netzreport.googlepages.com/online_converter... http://niquette.com/puzzles/romannp.htm http://www.psinvention.com/zoetic/romanJava.htm http://www.ubr.com/clocks/faq/iiii.html http://www.utilitymill.com/utility/Decimal_to_Roma... http://www.moxlotus.alternatifs.eu/programmation-c... https://books.google.com/books?id=PVK6lt2xXz4C https://books.google.com/books?id=yhfdQgq8JF4C https://commons.wikimedia.org/wiki/Category:Roman_...