| article html file updated | 8 February 2020 16:30 CET | Update | https://www.mdpi.com/2073-4352/7/9/281 |
| article html file updated | 27 September 2019 05:14 CEST | Update | N/A |
| article html file updated | 3 May 2019 01:24 CEST | Update | N/A |
| article html file updated | 30 September 2017 08:45 CEST | Update | N/A |
| article html file updated | 18 September 2017 14:20 CEST | Original file | N/A |
| article xml uploaded. | 18 September 2017 14:19 CEST | Original file | https://www.mdpi.com/2073-4352/7/9/281/xml |
| article pdf uploaded. | 18 September 2017 14:19 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/9/281/pdf |
