| article html file updated | 6 February 2020 05:20 CET | Update | https://www.mdpi.com/1422-0067/14/11/21819 |
| article html file updated | 7 May 2019 22:32 CEST | Update | - |
| article html file updated | 21 March 2019 07:05 CET | Update | - |
| article html file updated | 9 December 2013 08:43 CET | Original file | - |
| article xml file uploaded | 9 December 2013 08:43 CET | Original file | https://www.mdpi.com/1422-0067/14/11/21819/xml |
| article pdf uploaded. | 4 November 2013 11:16 CET | Version of Record | https://www.mdpi.com/1422-0067/14/11/21819/pdf |
