| article html file updated | 6 February 2020 03:58 CET | Update | https://www.mdpi.com/1422-0067/14/9/17420 |
| article html file updated | 8 May 2019 01:18 CEST | Update | - |
| article html file updated | 21 March 2019 03:32 CET | Update | - |
| article html file updated | 17 June 2015 12:39 CEST | Update | - |
| article html file updated | 31 October 2013 10:01 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:01 CET | Update | https://www.mdpi.com/1422-0067/14/9/17420/xml |
| article html file updated | 14 October 2013 12:22 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:21 CEST | Original file | - |
| article pdf uploaded. | 23 August 2013 14:40 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/17420/pdf |
