| article html file updated | 6 February 2020 05:46 CET | Update | https://www.mdpi.com/1422-0067/14/12/23274 |
| article html file updated | 7 May 2019 21:41 CEST | Update | - |
| article html file updated | 21 March 2019 08:15 CET | Update | - |
| article html file updated | 19 August 2015 11:02 CEST | Update | - |
| article html file updated | 31 December 2013 09:16 CET | Original file | - |
| article xml file uploaded | 31 December 2013 09:15 CET | Original file | https://www.mdpi.com/1422-0067/14/12/23274/xml |
| article pdf uploaded. | 26 November 2013 12:01 CET | Version of Record | https://www.mdpi.com/1422-0067/14/12/23274/pdf |
