| article html file updated | 8 February 2020 14:14 CET | Update | https://www.mdpi.com/2072-6651/9/9/255 |
| article html file updated | 26 September 2019 16:51 CEST | Update | N/A |
| article html file updated | 3 May 2019 05:36 CEST | Update | N/A |
| article html file updated | 30 September 2017 13:45 CEST | Update | N/A |
| article html file updated | 23 August 2017 15:43 CEST | Original file | N/A |
| article xml uploaded. | 23 August 2017 15:41 CEST | Original file | https://www.mdpi.com/2072-6651/9/9/255/xml |
| article pdf uploaded. | 23 August 2017 15:41 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/9/255/pdf |
