Modifiche

===Riferimenti esterni===

===Riferimenti esterni===

* http://www.jonathanveley.com/component/content/article?id=217

* [https://web.archive.org/web/20160317042651/http://www.jonathanveley.com/component/content/article?id=217] Pagina dal sito di Jonathan Veley

* http://www.richardspens.com/ref/glossary/S.htm

* [http://www.richardspens.com/ref/gloss/S.htm#sawaco] Voce del glossario di Richard Binder

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==Note==

==Note==