| article html file updated | 8 February 2020 10:41 CET | Update | https://www.mdpi.com/1996-1073/10/7/973 |
| article html file updated | 25 September 2019 21:03 CEST | Update | - |
| article html file updated | 3 May 2019 12:58 CEST | Update | - |
| article html file updated | 31 July 2017 07:11 CEST | Update | - |
| article html file updated | 17 July 2017 08:13 CEST | Update | - |
| article html file updated | 17 July 2017 08:12 CEST | Update | - |
| article html file updated | 17 July 2017 08:11 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 08:09 CEST | Original file | https://www.mdpi.com/1996-1073/10/7/973/xml |
| article pdf uploaded. | 17 July 2017 08:09 CEST | Updated version of record | https://www.mdpi.com/1996-1073/10/7/973/pdf |
| article pdf uploaded. | 11 July 2017 14:24 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/7/973/pdf-vor |
