The Economist. Economist Newspaper Limited, 1964 — 1028-bet. Qaraldi: 2019-yil 4-may. „... that are visible in Ericsson telephones have also been applied to the continuing improvement of high speed switching ... Ericsson crossbar systems are now standard equipment in many countries.“
„The Ericsson story“. Telefonaktiebolaget LM Ericsson and Centre for Business History in Stockholm (2019-yil 18-sentyabr). Qaraldi: 2021-yil 5-iyun.
„Ownership over the years“. Telefonaktiebolaget LM Ericsson and Centre for Business History in Stockholm (2019-yil 18-sentyabr). Qaraldi: 2021-yil 5-iyun.
„Untying the knots“. Telefonaktiebolaget LM Ericsson and Centre for Business History in Stockholm (2019-yil 18-sentyabr). Qaraldi: 2021-yil 5-iyun.