A Quick Introduction to Acrobat Forms Technology. — 2006. — 14 May. — Дата звернення: 19.02.2010. — Цитата: «Adobe's XFA Forms is a closed standard that competes with the fully open W3C Xforms standard».
ISO/TC 171/SC 2/WG 8 N 603 - Meeting Report. — 2011. — 27 June. — Цитата: «XFA is not to be ISO standard just yet. ... The Committee urges Adobe Systems to submit the XFA Specification, XML Forms Architecture (XFA), to ISO for standardization ... The Committee is concerned about the stability of the XFA specification ... Part 2 will reference XFA 3.1».
gnupdf.org
Gnu PDF - PDF Knowledge - Forms Data Format : [арх. 01.01.2013]. — Дата звернення: 19.02.2010. — Цитата: «Apparently Adobe introduced something newer called XFA (XML Forms Architecture) which doesn't seem standardized».
Gnu PDF - PDF Knowledge - Forms Data Format : [арх. 01.01.2013]. — Дата звернення: 19.02.2010. — Цитата: «Apparently Adobe introduced something newer called XFA (XML Forms Architecture) which doesn't seem standardized».
PDF and Standards[недоступне посилання] : [арх. 02.09.2013] / Leonard Rosenthol, Adobe Systems. — 2012. — Дата звернення: 20.10.2013.