1. ‘Stabilised power supplies. D.C. output’, BS5654 (1979), IEC478(1974)
2. Ferroresonant Transformer Bibliography, Magnetic Metals Inc.
3. ‘The derivation and application of design equations for ferroresonant voltage regulators and regulated rectifiers’;HART;IEEE Trans. Magnetics,1971
4. A Guide to the Specification and Use of Switching Power Supplies;BURCHALL,1977
5. ‘Why switching power supplies are rivalling linears’;BURCHALL;Electronics,1978