| article html file updated | 7 February 2020 14:58 CET | Update | https://www.mdpi.com/1660-3397/14/9/168 |
| article html file updated | 5 May 2019 04:07 CEST | Update | N/A |
| article html file updated | 27 September 2016 10:21 CEST | Update | N/A |
| article html file updated | 14 September 2016 08:51 CEST | Original file | N/A |
| article xml uploaded. | 14 September 2016 08:50 CEST | Update | https://www.mdpi.com/1660-3397/14/9/168/xml |
| article xml uploaded. | 14 September 2016 08:50 CEST | Original file | N/A |
| article pdf uploaded. | 14 September 2016 08:50 CEST | Version of Record | https://www.mdpi.com/1660-3397/14/9/168/pdf |
