| article html file updated | 7 February 2020 23:31 CET | Update | https://www.mdpi.com/2073-4360/9/2/66 |
| article html file updated | 23 September 2019 08:39 CEST | Update | - |
| article html file updated | 4 May 2019 11:00 CEST | Update | - |
| article html file updated | 20 March 2019 06:40 CET | Update | - |
| article html file updated | 1 March 2017 11:16 CET | Update | - |
| article html file updated | 16 February 2017 09:28 CET | Original file | - |
| article xml uploaded. | 16 February 2017 09:27 CET | Original file | https://www.mdpi.com/2073-4360/9/2/66/xml |
| article pdf uploaded. | 16 February 2017 09:27 CET | Version of Record | https://www.mdpi.com/2073-4360/9/2/66/pdf |
