thank you masaegu for your quick answer!!
I'll try to find something with your key words.
the examples you mentioned aren't really what I'm looking for,
because they're all about sketches from architects in general not
specifically japanese.
This could be something I'm looking for, I'll have to check it in my local library.
But nevertheless it is a magazin and there has to exist a specialised book,
about the japanese style.
Sophie