about the next IFIP congress in Edinburgh, United Kingdom.

is intended as a basis for discussion during the London meeting.

contains conclusions agreed upon during the two meetings IFIP PC.

The most of the interesting Ershov"s suggestions have been taken into considiration during PC meeting of London.

about meeting in Moscow with Dr. Ershov, Prof. Henrici, Dr. Householder and Prof. Glushcov.

with inviting to the next meeting of the IFIP PC-68.

makes a synthesis of dicisions in the Paris meeting.

of the meetings in Madrid.