| article html file updated | 9 February 2020 00:52 CET | Update | https://www.mdpi.com/2073-431X/7/1/2 |
| article html file updated | 2 May 2019 06:50 CEST | Update | - |
| article html file updated | 18 April 2019 04:44 CEST | Update | - |
| article html file updated | 28 March 2019 10:22 CET | Update | - |
| article html file updated | 5 April 2018 04:23 CEST | Update | - |
| article html file updated | 26 March 2018 15:55 CEST | Update | - |
| article html file updated | 22 December 2017 11:14 CET | Original file | - |
| article xml uploaded. | 22 December 2017 11:12 CET | Update | https://www.mdpi.com/2073-431X/7/1/2/xml |
| article xml uploaded. | 22 December 2017 11:12 CET | Original file | - |
| article pdf uploaded. | 22 December 2017 11:12 CET | Version of Record | https://www.mdpi.com/2073-431X/7/1/2/pdf |
