Philips: A history of the early days of semiconductor development by Philips and their main subsidiaries: Valvo, Mullard, Radiotechnique Compelec and Amperex.
Telefunken: A history of Semiconductor development from World War II radar detectors to the early 1960s.
History of Transistors in France: covers the first transistor (the Transistron) through to the developments by the early French transistor producers CSF, La Radiotechnique CFTH and LCT.
STC.