... has been translated into English, and my copy, all 1600 pges of it has just arrived after being highly recommended on the GQRP Yahoo discussion group.
What a mine of information!
Apparently everything that you'll ever need or want to know about antennae for amateur service, but probably way over the head of anyone who came in through the route of the Fools' (AKA Foundation) Licence as it very quickly summarises Maxwell's Equations and the Poynting Vector.
Will separate the men from the boys, especially showing up any who confuse their sideband and their sidetone.
(What a mistake has been the dumbing down of the educational standards to get licences, so flooding the bands with those who are indistinguishable from CBers in their being only operators and completely technically ignorant!)
Amateur Radio is not a bums-on-seats game.