| article html file updated | 6 February 2020 05:21 CET | Update | https://www.mdpi.com/1422-0067/14/11/21873 |
| article html file updated | 7 May 2019 22:29 CEST | Update | - |
| article html file updated | 21 March 2019 07:09 CET | Update | - |
| article html file updated | 9 December 2013 08:44 CET | Original file | - |
| article xml file uploaded | 9 December 2013 08:44 CET | Original file | https://www.mdpi.com/1422-0067/14/11/21873/xml |
| article pdf uploaded. | 5 November 2013 11:39 CET | Version of Record | https://www.mdpi.com/1422-0067/14/11/21873/pdf |
