| article html file updated | 8 February 2020 08:24 CET | Update | https://www.mdpi.com/1996-1073/10/6/815 |
| article html file updated | 25 September 2019 09:06 CEST | Update | - |
| article html file updated | 3 May 2019 17:15 CEST | Update | - |
| article html file updated | 27 June 2017 10:22 CEST | Update | - |
| article html file updated | 15 June 2017 14:04 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 14:02 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/815/xml |
| article pdf uploaded. | 15 June 2017 14:02 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/815/pdf |
