| article html file updated | 6 February 2020 04:25 CET | Update | https://www.mdpi.com/1422-0067/14/9/19109 |
| article html file updated | 8 May 2019 00:22 CEST | Update | - |
| article html file updated | 21 March 2019 04:39 CET | Update | - |
| article html file updated | 17 June 2015 13:17 CEST | Update | - |
| article html file updated | 31 October 2013 10:25 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:24 CET | Update | https://www.mdpi.com/1422-0067/14/9/19109/xml |
| article html file updated | 14 October 2013 13:07 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 13:06 CEST | Original file | - |
| article pdf uploaded. | 17 September 2013 11:55 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/19109/pdf |
