Unicode is a character encoding that attempts to assign a single unique integer, called a code point, to every character of every written human language. Code ponts range from 0 to 10FFFF hexidecimal (over 1.1 million code points), and are equivalent to the universal character set (standard ISO 10646.).The first 65535 code points (0-FFFF hexidecimal) are a subset known as the Basic Multilingual Plane, or BMP, and are sufficient for all languages except the character-rich Chinese, Japanese and Korean. UCS-2 is a 16-bit hexidecimal representation of every character point in the BMP. The first 256 code points (0-FF hexidecimal) match those of ISO 8859-1, often called Latin-1, the most popular 8-bit character encoding in the Western world The first 128 code points match ASCII (American Standard Code for Information Interchange), a 7-bit subset in the range 20 to 7F hexidecimal (32-127 decimal). ASCII has traditionally been used for plain text encoding in English.
Citations for world wide web articles (for reliable sources such as the Australian War Memorial) typically include: the name of the author or authors, the title of the article in quotes, the name of the website (linked to a Wikipedia article about the site if it exists, or to Website's "about page"), date of publication, page number(s) (if applicable), the date you retrieved it (invisible to the reader if the article has a date of publication),[dubious – discuss] an optional short quote (used rarely, if the reference is likely to be challenged)
A citation ideally includes a link or ID number to help editors locate the source.
If you have a URL (webpage) link, you can add it to the title part of the citation, so that when you add the citation to Wikipedia the URL becomes hidden and the title becomes clickable. To do this, enclose the URL and the title in square brackets—the URL first, then a space, then the title. For example:
Brown, R.: "Size of the Moon", Scientific American, 51(78):46.
For web-only sources you should also include a "Retrieved on" date in case the webpage changes in future: Retrieved on 2008-07-15.