| article html file updated | 7 February 2020 17:19 CET | Update | https://www.mdpi.com/1422-0067/17/11/1820 |
| article html file updated | 4 May 2019 23:49 CEST | Update | - |
| article html file updated | 2 December 2016 02:36 CET | Update | - |
| article html file updated | 1 November 2016 10:40 CET | Original file | - |
| article xml uploaded. | 1 November 2016 10:39 CET | Update | https://www.mdpi.com/1422-0067/17/11/1820/xml |
| article xml uploaded. | 1 November 2016 10:39 CET | Original file | - |
| article pdf uploaded. | 1 November 2016 10:39 CET | Version of Record | https://www.mdpi.com/1422-0067/17/11/1820/pdf |
