| article html file updated | 7 February 2020 23:13 CET | Update | https://www.mdpi.com/1996-1073/10/2/206 |
| article html file updated | 23 September 2019 06:57 CEST | Update | - |
| article html file updated | 4 May 2019 11:36 CEST | Update | - |
| article html file updated | 28 February 2017 10:34 CET | Update | - |
| article html file updated | 11 February 2017 12:26 CET | Original file | - |
| article xml uploaded. | 11 February 2017 12:25 CET | Update | https://www.mdpi.com/1996-1073/10/2/206/xml |
| article xml uploaded. | 11 February 2017 12:25 CET | Original file | - |
| article pdf uploaded. | 11 February 2017 12:25 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/206/pdf |
