Maic Masuch and Bert Freudenberg and Babette Ludowici and Sebastian Kreiker and Thomas Strothotte.
Virtual Reconstruction of Medieval Architecture.
In Proceedings of EUROGRAPHICS 1999, Short Papers, pp. 87--90, 1999.

Bibtex:

@InProceedings{ masuch:1999:VRMA,
  author = 	"Maic Masuch and Bert Freudenberg and Babette Ludowici
                 and Sebastian Kreiker and Thomas Strothotte",
  title = 	"Virtual Reconstruction of Medieval Architecture",
  booktitle = 	"Proceedings of EUROGRAPHICS 1999, Short Papers",
  pages = 	"87--90",
  year = 	"1999",
}

Images: