| article html file updated | 7 February 2020 15:18 CET | Update | https://www.mdpi.com/2073-4352/6/9/120 |
| article html file updated | 5 May 2019 03:33 CEST | Update | N/A |
| article html file updated | 28 September 2016 11:39 CEST | Update | N/A |
| article html file updated | 21 September 2016 10:34 CEST | Original file | N/A |
| article xml uploaded. | 21 September 2016 10:32 CEST | Update | https://www.mdpi.com/2073-4352/6/9/120/xml |
| article xml uploaded. | 21 September 2016 10:32 CEST | Original file | N/A |
| article pdf uploaded. | 21 September 2016 10:32 CEST | Version of Record | https://www.mdpi.com/2073-4352/6/9/120/pdf |
