| article html file updated | 7 February 2020 22:27 CET | Update | https://www.mdpi.com/2073-4360/9/2/45 |
| article html file updated | 23 September 2019 02:48 CEST | Update | - |
| article html file updated | 4 May 2019 13:09 CEST | Update | - |
| article html file updated | 20 March 2019 06:33 CET | Update | - |
| article html file updated | 1 March 2017 11:12 CET | Update | - |
| article html file updated | 8 February 2017 11:18 CET | Original file | - |
| article xml uploaded. | 8 February 2017 10:27 CET | Update | https://www.mdpi.com/2073-4360/9/2/45/xml |
| article xml uploaded. | 8 February 2017 10:27 CET | Original file | - |
| article pdf uploaded. | 8 February 2017 10:27 CET | Updated version of record | https://www.mdpi.com/2073-4360/9/2/45/pdf |
| article pdf uploaded. | 29 January 2017 04:46 CET | Version of Record | https://www.mdpi.com/2073-4360/9/2/45/pdf-vor |
