| article html file updated | 12 February 2020 16:03 CET | Update | https://www.mdpi.com/2227-7102/9/2/117 |
| article html file updated | 20 October 2019 22:41 CEST | Update | - |
| article html file updated | 4 July 2019 18:03 CEST | Update | - |
| article html file updated | 29 May 2019 11:28 CEST | Original file | - |
| article pdf uploaded. | 29 May 2019 11:27 CEST | Version of Record | https://www.mdpi.com/2227-7102/9/2/117/pdf |
| article xml uploaded. | 29 May 2019 11:27 CEST | Update | https://www.mdpi.com/2227-7102/9/2/117/xml |
| article xml file uploaded | 29 May 2019 11:27 CEST | Original file | - |
