| article html file updated | 6 February 2020 23:26 CET | Update | https://www.mdpi.com/2075-4426/5/4/341 |
| article html file updated | 6 May 2019 10:02 CEST | Update | - |
| article html file updated | 26 March 2019 11:57 CET | Update | - |
| article html file updated | 29 October 2015 14:00 CET | Original file | - |
| article xml file uploaded | 29 October 2015 14:00 CET | Original file | https://www.mdpi.com/2075-4426/5/4/341/xml |
| article pdf uploaded. | 16 October 2015 11:26 CEST | Updated version of record | https://www.mdpi.com/2075-4426/5/4/341/pdf |
| article pdf uploaded. | 30 September 2015 17:33 CEST | Version of Record | https://www.mdpi.com/2075-4426/5/4/341/pdf-vor |
