| article html file updated | 6 February 2020 03:58 CET | Update | https://www.mdpi.com/1422-0067/14/9/17304 |
| article html file updated | 8 May 2019 01:20 CEST | Update | - |
| article html file updated | 21 March 2019 03:30 CET | Update | - |
| article html file updated | 17 June 2015 12:37 CEST | Update | - |
| article html file updated | 31 October 2013 10:00 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:00 CET | Update | https://www.mdpi.com/1422-0067/14/9/17304/xml |
| article html file updated | 14 October 2013 12:18 CEST | Original file | - |
| article xml file uploaded | 14 October 2013 12:18 CEST | Original file | - |
| article pdf uploaded. | 22 August 2013 16:56 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/9/17304/pdf |
