@incollection{Erol12, author = {Bihter Erol and Serdar Erol}, title = {GNSS in Practical Determination of Regional Heights}, booktitle = {Global Navigation Satellite Systems}, publisher = {IntechOpen}, address = {Rijeka}, year = {2012}, editor = {Shuanggen Jin}, chapter = {6}, doi = {10.5772/28820}, url = {https://doi.org/10.5772/28820} }