| article html file updated | 8 February 2020 09:37 CET | Update | https://www.mdpi.com/1996-1073/10/7/873 |
| article html file updated | 25 September 2019 15:32 CEST | Update | - |
| article html file updated | 3 May 2019 14:57 CEST | Update | - |
| article html file updated | 31 July 2017 06:51 CEST | Update | - |
| article html file updated | 29 June 2017 14:24 CEST | Original file | - |
| article xml uploaded. | 29 June 2017 14:23 CEST | Update | https://www.mdpi.com/1996-1073/10/7/873/xml |
| article pdf uploaded. | 29 June 2017 14:23 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/873/pdf |
