Robuta

https://www.w3.org/MarkUp/2009/xhtml-basic-2nd-edition-errata.html Errata in XHTML Basic 1.1 Second Edition xhtml basic 1 second errata edition https://www.w3.org/MarkUp/2007/xhtmlbasic11implementation.html XHTML Basic 1.1 Implementation Report xhtml basic 1 implementation report