Letter with Attachments The letter contains the Report from the Organizing Committee on the IFIP Working Group on Numerical Mathematical Software as well as the following attachments: 1)Letter of invitation; 2)Preliminary views on the proposed WG and activities; 3)Formal Proposal of March 1974; 4)Addresses of the committee members. Date: 29.03.1974 Original document language: English Authors: Bo Einarsson Persons: James C.T. Pool, Brian Ford Addressee: Andrei Petrovich Ershov