| article html file updated | 6 February 2020 04:16 CET | Update | https://www.mdpi.com/1422-0067/14/9/18557 |
| article html file updated | 8 May 2019 00:42 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:17 CET | Update | N/A |
| article html file updated | 17 June 2015 13:02 CEST | Update | N/A |
| article html file updated | 31 October 2013 10:19 CET | Update | N/A |
| article xml file uploaded | 31 October 2013 10:19 CET | Update | https://www.mdpi.com/1422-0067/14/9/18557/xml |
| article html file updated | 14 October 2013 12:50 CEST | Original file | N/A |
| article xml file uploaded | 14 October 2013 12:50 CEST | Original file | N/A |
| article pdf uploaded. | 9 September 2013 12:19 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18557/pdf |
