| article html file updated | 6 February 2020 05:20 CET | Update | https://www.mdpi.com/1422-0067/14/11/21781 |
| article html file updated | 7 May 2019 22:32 CEST | Update | N/A |
| article html file updated | 21 March 2019 07:05 CET | Update | N/A |
| article html file updated | 14 August 2014 12:06 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:06 CEST | Update | https://www.mdpi.com/1422-0067/14/11/21781/xml |
| article html file updated | 9 December 2013 08:42 CET | Original file | N/A |
| article xml file uploaded | 9 December 2013 08:42 CET | Original file | N/A |
| article pdf uploaded. | 5 November 2013 14:13 CET | Updated version of record | https://www.mdpi.com/1422-0067/14/11/21781/pdf |
| article pdf uploaded. | 4 November 2013 10:57 CET | Version of Record | https://www.mdpi.com/1422-0067/14/11/21781/pdf-vor |
