| article html file updated | 8 February 2020 22:16 CET | Update | https://www.mdpi.com/2073-8994/9/12/291 |
| article html file updated | 28 September 2019 18:31 CEST | Update | - |
| article html file updated | 2 May 2019 12:36 CEST | Update | - |
| article html file updated | 18 April 2019 10:13 CEST | Update | - |
| article html file updated | 2 January 2018 17:33 CET | Update | - |
| article html file updated | 26 November 2017 07:04 CET | Original file | - |
| article xml uploaded. | 26 November 2017 07:02 CET | Update | https://www.mdpi.com/2073-8994/9/12/291/xml |
| article xml uploaded. | 26 November 2017 07:02 CET | Original file | - |
| article pdf uploaded. | 26 November 2017 07:02 CET | Version of Record | https://www.mdpi.com/2073-8994/9/12/291/pdf |
