| article html file updated | 9 February 2020 06:30 CET | Update | https://www.mdpi.com/2073-431X/7/1/15 |
| article html file updated | 30 September 2019 18:32 CEST | Update | - |
| article html file updated | 1 May 2019 18:44 CEST | Update | - |
| article html file updated | 17 April 2019 18:00 CEST | Update | - |
| article html file updated | 28 March 2019 23:02 CET | Update | - |
| article html file updated | 5 April 2018 04:26 CEST | Update | - |
| article html file updated | 26 March 2018 16:04 CEST | Update | - |
| article html file updated | 13 February 2018 08:25 CET | Original file | - |
| article xml uploaded. | 13 February 2018 08:23 CET | Update | https://www.mdpi.com/2073-431X/7/1/15/xml |
| article xml uploaded. | 13 February 2018 08:23 CET | Original file | - |
| article pdf uploaded. | 13 February 2018 08:23 CET | Version of Record | https://www.mdpi.com/2073-431X/7/1/15/pdf |
