- Received October 1, 2015.
- Revision received June 9, 2016.
- Accepted June 9, 2016.
Copyright & Usage
© 2016 The Author(s)
- 1Croatian Geological Survey, Sachsova 2, Zagreb, Croatia
- 2Faculty of Mining, Geology and Petroleum Engineering, University in Zagreb, Pierottijeva 6, Zagreb, Croatia
- 3Faculty of Agriculture, University in Zagreb, Svetošimunska cesta 25, Zagreb, Croatia