| article html file updated | 7 February 2020 09:41 CET | Update | https://www.mdpi.com/1660-3397/14/6/109 |
| article html file updated | 5 May 2019 13:50 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:34 CET | Update | N/A |
| article html file updated | 29 June 2016 10:09 CEST | Update | N/A |
| article html file updated | 3 June 2016 09:38 CEST | Original file | N/A |
| article xml uploaded. | 3 June 2016 09:36 CEST | Original file | https://www.mdpi.com/1660-3397/14/6/109/xml |
| article pdf uploaded. | 3 June 2016 09:36 CEST | Version of Record | https://www.mdpi.com/1660-3397/14/6/109/pdf |
