The authors have really not information about dogs. Not only about CsW or SWH, but about GSD as well. The "DDR line" and "Czuech line" of GSD looks little bit other. The basic difference is, that they are really working dogs and cant be so angled, like the show line of GSD, which is on the pictures.
And am not supriced, because its a US page and as we all know, USA cynology is on the top
(its a reason, why they buing the working dogs in Europe and in eastern Europe especially).