The 58 responses you can read here, include fascinating insights into both the Lausanne 1974 Congress and Ralph Winter’s processing of these issues.
Note that each plenary presenter submitted their paper months before the July 1974 event. In turn, these were sent to both official “responders” (for Winter, that included: J. Philip Hogan, Jacob Loewen, David J. Cho, and Pablo Pérez) and to all known delegates. (All by postal mail!). Then, the presenter could adjust their paper as they delivered it at the actual event.
In reality, three versions were ultimately produced, since after the event, each were able to edit the transcript to clarify issues for publication in the Congress compendium. It is titled: Let the Earth Hear His Voice (J.D. Douglas, editor), and it is almost 1,500 pages from the entire congress.