This radical character is written differently in Simplified Chinese compared with other languages. In mainland China's writing reform, xin zixing, or the new printing typeface, adopted a more vulgar and symmetric form 非. This change may also be applied to Traditional Chinese publications in mainland China.
Fazzioli, Edoardo (1987). Chinese calligraphy : from pictograph to ideogram : the history of 214 essential Chinese/Japanese characters. calligraphy by Rebecca Hon Ko. New York: Abbeville Press. ISBN0-89659-774-1.
GF 0011-2009 Table of Indexing Chinese Character Components prescribes 201 principle indexing components and 100 associated indexing components (in brackets) used in Simplified Chinese. Not all associated indexing components are listed above.