Where could I get the SAP Adapter realated documentation?

Hi there,

There is is mentioned related documentation in the SAP Adapter user guide that I can’t find:

RFC-XML Format Specifications (IFR-XMLFormatSpec.pdf)

RFC-XML Specification (RFC_XML.html)

BizTalk Envelope Specifications (BizTalkEnvelopeSpec.pdf)

Unfortunately, I was unable to find that documentation on andvantage.webmethods.com site also. Does somebody know where to get missing documentation.

Please help.

Best regards,