Hack, R. (2010) Integration of Surface and Subsurface Data for Civil Engineering, Proc. 1st Int. Conf. Information Technology in Geo-Engineering, Shanghai (eds. D.G. Toll, H. Zhu & X. Li) The Netherlands: IOS Press, pp. 37-49, http://dx.doi.org/10.32
Hack, R. (2010) Integration of Surface and Subsurface Data for Civil Engineering, Proc. 1st Int. Conf. Information Technology in Geo-Engineering, Shanghai (eds. D.G. Toll, H. Zhu & X. Li) The Netherlands: IOS Press, pp. 37-49, http://dx.doi.org/10.3233/978-1-60750-617-1-37.