| article html file updated | 6 February 2020 04:19 CET | Update | https://www.mdpi.com/1422-0067/14/9/18711 |
| article html file updated | 8 May 2019 00:36 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:24 CET | Update | N/A |
| article html file updated | 17 June 2015 13:07 CEST | Update | N/A |
| article html file updated | 31 October 2013 10:22 CET | Update | N/A |
| article xml file uploaded | 31 October 2013 10:21 CET | Update | https://www.mdpi.com/1422-0067/14/9/18711/xml |
| article html file updated | 14 October 2013 12:54 CEST | Original file | N/A |
| article xml file uploaded | 14 October 2013 12:53 CEST | Original file | N/A |
| article pdf uploaded. | 11 September 2013 13:54 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/18711/pdf |
