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2.
ForsellH., The Gotland D.C. Link: The Grid Control and Regulation Equipment. Part I, Direct Current, Vol. 2, No. 5, pp. 109–114 (1955); Part II, Direct Current, Vol. 2, No. 7, pp. 166–170 (1955).
3.
The Cross-Channel Cable, Direct Current, Vol. 4, No. 2, pp. 41–7 (1958).
4.
Project on the Cross-Channel project, Direct Current, p. 67 (1961).
5.
PimenovV. P.PosseA. V.ReiderA. M.RokotjanS. S. and TuretskuV. E., The D.C. Transmission from Stalingrad Hydro-Electric Station to Donbass, Direct Current, Vol. 3, No. 4, pp. 106–112 (1957).
6.
VoskresenskiiV. V.BarakaevKh. F. and TravinL. V., A Scale Model of Stalingrad Hydro-Electric Station to Donbass D.C. Power Transmission System, Direct Current (April 1961).
7.
The H. V.D.C. Interconnection between islands of New Zealand, Direct Current, Vol. 7, No. 2, p. 32 (February 1962).
8.
The Link between Sardinia and Italy, Direct Current, p. 30 (February 1962).
9.
American Proposal for Major d.c. Interconnection, Direct Current, p. 19 (January 1962).
10.
AdamsonC. and HingoraniN. G., High Voltage Direct Current Power Transmission. Garraway, London (1960).
11.
Yet another h.v.d.c. project, Foreword, Direct Current, p. 113 (May 1962).
12.
LeshukovN. D. and ShipulinaN. A., Disconnection of Branch Lines from d.c. Transmission Lines, Direct Current, p. 39 (Feburary 1962).
13.
FrerisL. L., The Universal Characteristic of a 3-Phase Bridge Converter, Direct Current, p. 198 (October 1961).