| article html file updated | 7 February 2020 21:31 CET | Update | https://www.mdpi.com/2073-4360/9/1/29 |
| article html file updated | 22 September 2019 21:41 CEST | Update | - |
| article html file updated | 4 May 2019 15:12 CEST | Update | - |
| article html file updated | 18 March 2019 06:03 CET | Update | - |
| article html file updated | 7 February 2017 10:32 CET | Update | - |
| article html file updated | 14 January 2017 12:23 CET | Original file | - |
| article xml uploaded. | 14 January 2017 12:22 CET | Update | https://www.mdpi.com/2073-4360/9/1/29/xml |
| article xml uploaded. | 14 January 2017 12:22 CET | Original file | - |
| article pdf uploaded. | 14 January 2017 12:22 CET | Version of Record | https://www.mdpi.com/2073-4360/9/1/29/pdf |
