| article html file updated | 6 February 2020 06:00 CET | Update | https://www.mdpi.com/1422-0067/14/12/23774 |
| article html file updated | 7 May 2019 21:13 CEST | Update | - |
| article html file updated | 21 March 2019 08:53 CET | Update | - |
| article html file updated | 19 August 2015 12:35 CEST | Update | - |
| article html file updated | 31 December 2013 09:23 CET | Original file | - |
| article xml file uploaded | 31 December 2013 09:23 CET | Original file | https://www.mdpi.com/1422-0067/14/12/23774/xml |
| article pdf uploaded. | 5 December 2013 12:21 CET | Version of Record | https://www.mdpi.com/1422-0067/14/12/23774/pdf |
