WidemanOne Adobe FrameMaker Topics
http://www.wideman-one.com/gw/tech/framemaker/index.htm

Wideman, Graham
WidemanOne
2001

Abstract:

For all that the most central concept in FrameMaker is the Frame, the existing documentation is thoroughly foggy regarding the precise nature of the Frame types and the relationships amongst them. Here is a first pass at rectifying that shortcoming.