..".When considering the present book, one must bear in mind the dispersion of the documentation it considers, largerly unpublished material. After all, one of the most intriguing aspects of research, is the reevalutation of existing documentation. This sometimes rather tedious job becomes, in this case, real detective work. Searches for documents scattered in several countries, in countless archives, and in several languages, turns into a fascinating inquiry into the nature of past research, one that leads to a new understanding of the monument itself." (from foreword by Miljenko Jurkovic).