Gerstenecker, C. ; Alkis, A. ; Arun, G. ; Demirel, H. ; Dogan, U. ; Düppe, R. ; Krocker, R. ; Snitil, B. (2001):
Deformation Observations at the Church of Sergios and Bakchos by Photogrammetric Tools.
In: Proceedings of the 2nd International Congress on Studies in Ancient Structures, Istanbul, Turkey, 09.-13.07.2001, [Conference or Workshop Item]

Alkis, A. ; Altan, O. ; Demirel, H. ; Dogan, U. ; Düppe, R. ; Gerstenecker, C. ; Öszen, G. ; Snitil, B. ; Stichel, R. ; Svenshon, H. ; Wrobel, B. (1999):
Construction of a Building Information System for the Church of Sergios and Bacchus, Istanbul, Turkey.
In: Turkish-German Joint Geodetic Days <3, 1999, Istanbul>: Proceedings. Hrsg.: M.O. Altan, L. Gründig. Vol. 1., pp. 321-330. [Article]

Alkis, A. ; Altan, O. ; Demirel, H. ; Dogan, U. ; Düppe, R. ; Gerstenecker, C. ; Öszen, G. ; Snitil, B. ; Stichel, R. (1999):
Construction of a building information system for the church of Sergios and Bacchus, Istanbul, Turkey.
In: Turkish-German Joint Geodetic Days <3, 1999, Istanbul>: Proceedings. Hrsg.: M.O. Altan, L. Gründig. Vol. 1. S. 321-330, [Conference or Workshop Item]