| article html file updated | 6 February 2020 02:32 CET | Update | https://www.mdpi.com/1422-0067/14/6/12090 |
| article html file updated | 8 May 2019 04:16 CEST | Update | - |
| article html file updated | 20 March 2019 23:33 CET | Update | - |
| article html file updated | 17 June 2015 10:03 CEST | Update | - |
| article html file updated | 30 July 2013 13:50 CEST | Update | - |
| article xml file uploaded | 30 July 2013 13:50 CEST | Update | https://www.mdpi.com/1422-0067/14/6/12090/xml |
| article html file updated | 19 July 2013 10:38 CEST | Original file | - |
| article xml file uploaded | 19 July 2013 10:37 CEST | Original file | - |
| article pdf uploaded. | 6 June 2013 14:28 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/6/12090/pdf |
