of the 6th TC2 meeting.

of the WG 2.1 concerning its 6th meeting (Appendix A to the Minutes of the 6th TC2 meeting).

for a Working Group on Programming Language Description (Appendix B to the meeting's Minutes).

on the 2nd meeting of the Organizing Committee for IFIP Working Conference on Symbol Manipulation Languages (Appendix C to the Minutes of the 6th TC2 meeting).

for the IFIP Working Conference on Simulation Languages (Appendix D to the meeting's Minutes).