| article html file updated | 7 February 2020 18:51 CET | Update | https://www.mdpi.com/1422-0067/17/12/2006 |
| article html file updated | 4 May 2019 20:50 CEST | Update | - |
| article html file updated | 27 December 2016 10:59 CET | Update | - |
| article html file updated | 30 November 2016 11:13 CET | Original file | - |
| article xml uploaded. | 30 November 2016 11:12 CET | Update | https://www.mdpi.com/1422-0067/17/12/2006/xml |
| article xml uploaded. | 30 November 2016 11:12 CET | Original file | - |
| article pdf uploaded. | 30 November 2016 11:12 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/2006/pdf |
