Watt, A.D.
VLF radio engineering - London Pergamon 1967 - 701 p. - International series of Monographs in Electromagnetic Waves Vol.14 .
621.396.029.5 / W3
VLF radio engineering - London Pergamon 1967 - 701 p. - International series of Monographs in Electromagnetic Waves Vol.14 .
621.396.029.5 / W3