| article html file updated | 8 February 2020 08:16 CET | Update | https://www.mdpi.com/1996-1073/10/6/806 |
| article html file updated | 25 September 2019 08:16 CEST | Update | - |
| article html file updated | 3 May 2019 17:31 CEST | Update | - |
| article html file updated | 27 June 2017 10:20 CEST | Update | - |
| article html file updated | 14 June 2017 16:08 CEST | Original file | - |
| article xml uploaded. | 14 June 2017 16:07 CEST | Original file | https://www.mdpi.com/1996-1073/10/6/806/xml |
| article pdf uploaded. | 14 June 2017 16:07 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/6/806/pdf |
