last: Surname of author. Do not wikilink—use authorlink instead. Where the surname is usually written first—as in Chinese—or for corporate authors, simply use last to include the same format as the source.
first: Given or first names of author, including title(s); for example: Firstname Middlename or Firstname M. or Dr. Firstname M., Sr. Do not wikilink—use authorlink instead.
OR: for multiple authors, use first1, last1 through first9, last9 for up to nine authors. By default, if nine authors are defined, then only eight will show and "et al." will show in place of the last author.
authorlink: Title of existing Wikipedia article about the author—not the author's website; do not wikilink.
OR: for multiple authors, use authorlink1 through authorlink9.
Aliases: last, last1, author, authors; last1, author1 through last9, author9