| article html file updated | 6 February 2020 05:18 CET | Update | https://www.mdpi.com/1422-0067/14/11/21689 |
| article html file updated | 7 May 2019 22:36 CEST | Update | - |
| article html file updated | 21 March 2019 07:00 CET | Update | - |
| article html file updated | 9 December 2013 08:40 CET | Original file | - |
| article xml file uploaded | 9 December 2013 08:40 CET | Original file | https://www.mdpi.com/1422-0067/14/11/21689/xml |
| article pdf uploaded. | 1 November 2013 09:54 CET | Version of Record | https://www.mdpi.com/1422-0067/14/11/21689/pdf |
