EN/CityGML-Tutorial/chapter-1:-Intro-CityGML.md

@@ -59,7 +59,7 @@ The XML encoding of the UML diagram is defined in an XML schema. In CityGML 2.0,
 
 In CityGML 3.0, only the UML model is defined in the conceptual model standard document. Unlike CityGML 2.0 multiple encodings can exist for CityGML 3.0 to encode the conceptual (UML) model. One encoding is the [XML](https://github.com/opengeospatial/CityGML-3.0Encodings/tree/master/Moved_to_CITYGML-3.0Encoding_CityGML) encoding. A free Java tool to convert datasets from CityGML 2.0 to CityGML 3.0 is available [here](https://github.com/tum-gis/citygml2-to-citygml3). Other encodings such as CityDotNet, CityJSON, CitySQL are under [development](https://github.com/opengeospatial/CityGML-3.0Encodings).
 
-Both CityGML 2.0 and CityGML 3.0 (XML encoding) are XML based file format hence they can be easily viewed in any XML editor such as [Notepad ++](https://notepad-plus-plus.org/downloads/) and also using a free 3D GIS / BIM viewer - [FZK Viewer](https://www.iai.kit.edu/1648.php). For am extensive list of other tools supporting CityGML, visit [here](https://transfer.hft-stuttgart.de/gitlab/coors/3d-stadtmodelle/-/wikis/home).
+Both CityGML 2.0 and CityGML 3.0 (XML encoding) are XML based file format, hence they can be easily viewed in any XML editor such as [Notepad ++](https://notepad-plus-plus.org/downloads/) and also using a free 3D GIS / BIM viewer - [FZK Viewer](https://www.iai.kit.edu/1648.php). For am extensive list of other tools supporting CityGML, visit [here](https://transfer.hft-stuttgart.de/gitlab/coors/3d-stadtmodelle/-/wikis/home).
 
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@@ -88,7 +88,7 @@ Both CityGML 2.0 and CityGML 3.0 (XML encoding) are XML based file format hence
 
 [OGC City Geography Markup Language (CityGML) Encoding Standard, OGC document 12-019](https://portal.ogc.org/files/?artifact_id=47842)
 
-[L. Rothengass: Generierung und Evaluierung dreidimensionaler Landschaftsmodelle für eine CFD-Windsimulation, Master-Thesis, Vermessung, HFT Stuttgart, SS 2018, Gutachter: Herr Prof. Coors, HFT Stuttgart und Frau Dr. Wild-Pfeiffer, Landesamt für Geoinformation und Landentwicklung Baden-Württemberg (LGL BW) (in german)](https://www.coors-online.de/wp-content/uploads/2018/08/3D-DLM-Rothenga%C3%9F-2.Abgabe.pdf)
+[L. Rothengass: Generierung und Evaluierung dreidimensionaler Landschaftsmodelle für eine CFD-Windsimulation, Master-Thesis, Vermessung, HFT Stuttgart, SS 2018, Gutachter: Herr Prof. Coors, HFT Stuttgart und Frau Dr. Wild-Pfeiffer, Landesamt für Geoinformation und Landentwicklung Baden-Württemberg (LGL BW) (in German)](https://www.coors-online.de/wp-content/uploads/2018/08/3D-DLM-Rothenga%C3%9F-2.Abgabe.pdf)
 
 ### CityGML Version 3.0