| article html file updated | 8 February 2020 00:21 CET | Update | https://www.mdpi.com/2072-6651/9/3/81 |
| article html file updated | 23 September 2019 13:25 CEST | Update | - |
| article html file updated | 4 May 2019 09:13 CEST | Update | - |
| article html file updated | 30 March 2017 06:07 CEST | Update | - |
| article html file updated | 27 February 2017 12:32 CET | Original file | - |
| article xml uploaded. | 27 February 2017 12:31 CET | Original file | https://www.mdpi.com/2072-6651/9/3/81/xml |
| article pdf uploaded. | 27 February 2017 12:31 CET | Version of Record | https://www.mdpi.com/2072-6651/9/3/81/pdf |
