| article html file updated | 7 February 2020 20:23 CET | Update | https://www.mdpi.com/1660-3397/15/1/3 |
| article html file updated | 22 September 2019 15:41 CEST | Update | - |
| article html file updated | 4 May 2019 17:38 CEST | Update | - |
| article html file updated | 7 February 2017 13:33 CET | Update | - |
| article html file updated | 29 December 2016 13:40 CET | Update | - |
| article xml uploaded. | 29 December 2016 13:39 CET | Update | https://www.mdpi.com/1660-3397/15/1/3/xml |
| article pdf uploaded. | 29 December 2016 13:39 CET | Updated version of record | https://www.mdpi.com/1660-3397/15/1/3/pdf |
| article html file updated | 27 December 2016 12:18 CET | Original file | - |
| article xml uploaded. | 27 December 2016 11:58 CET | Update | - |
| article xml uploaded. | 27 December 2016 11:58 CET | Original file | - |
| article pdf uploaded. | 27 December 2016 11:58 CET | Version of Record | https://www.mdpi.com/1660-3397/15/1/3/pdf-vor |
