| article html file updated | 7 February 2020 20:30 CET | Update | https://www.mdpi.com/1660-4601/14/1/28 |
| article html file updated | 22 September 2019 16:17 CEST | Update | - |
| article html file updated | 4 May 2019 17:25 CEST | Update | - |
| article html file updated | 7 February 2017 10:47 CET | Update | - |
| article html file updated | 29 December 2016 10:44 CET | Original file | - |
| article xml uploaded. | 29 December 2016 10:43 CET | Original file | https://www.mdpi.com/1660-4601/14/1/28/xml |
| article pdf uploaded. | 29 December 2016 10:43 CET | Version of Record | https://www.mdpi.com/1660-4601/14/1/28/pdf |
