| article html file updated | 7 February 2020 18:53 CET | Update | https://www.mdpi.com/1422-0067/17/12/2009 |
| article html file updated | 4 May 2019 20:47 CEST | Update | - |
| article html file updated | 27 December 2016 10:59 CET | Update | - |
| article html file updated | 30 November 2016 13:19 CET | Original file | - |
| article xml uploaded. | 30 November 2016 13:18 CET | Update | https://www.mdpi.com/1422-0067/17/12/2009/xml |
| article xml uploaded. | 30 November 2016 13:18 CET | Original file | - |
| article pdf uploaded. | 30 November 2016 13:18 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/2009/pdf |
