@inproceedings{TUW-120328, author = {B{\"o}hm, Johannes and Schuh, Harald}, title = {Linear Horizontal Gradients of Refractivity vs. 3D Raytracing}, booktitle = {IVS General Meeting}, year = {2006}, editor = {Schuh, Harald}, note = {talk: IVS General Meeting, Concepcion, Chile; 2006-01-09 -- 2006-01-13} }