| article html file updated | 7 February 2020 17:44 CET | Update | https://www.mdpi.com/1422-0067/17/11/1868 |
| article html file updated | 4 May 2019 23:03 CEST | Update | - |
| article html file updated | 2 December 2016 02:42 CET | Update | - |
| article html file updated | 9 November 2016 09:54 CET | Original file | - |
| article xml uploaded. | 9 November 2016 09:52 CET | Original file | https://www.mdpi.com/1422-0067/17/11/1868/xml |
| article pdf uploaded. | 9 November 2016 09:52 CET | Version of Record | https://www.mdpi.com/1422-0067/17/11/1868/pdf |
