| article html file updated | 7 February 2020 20:31 CET | Update | https://www.mdpi.com/2072-6651/9/1/15 |
| article html file updated | 22 September 2019 16:25 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:22 CEST | Update | N/A |
| article html file updated | 7 February 2017 13:37 CET | Update | N/A |
| article html file updated | 30 December 2016 04:03 CET | Original file | N/A |
| article xml uploaded. | 30 December 2016 04:02 CET | Update | https://www.mdpi.com/2072-6651/9/1/15/xml |
| article xml uploaded. | 30 December 2016 04:02 CET | Original file | N/A |
| article pdf uploaded. | 30 December 2016 04:02 CET | Version of Record | https://www.mdpi.com/2072-6651/9/1/15/pdf |
