| article html file updated | 6 February 2020 01:11 CET | Update | https://www.mdpi.com/1422-0067/14/4/6556 |
| article html file updated | 8 May 2019 06:59 CEST | Update | - |
| article html file updated | 20 March 2019 20:12 CET | Update | - |
| article html file updated | 17 June 2015 07:50 CEST | Update | - |
| article html file updated | 21 May 2013 09:23 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:23 CEST | Update | https://www.mdpi.com/1422-0067/14/4/6556/xml |
| article html file updated | 6 May 2013 17:13 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 17:12 CEST | Original file | - |
| article pdf uploaded. | 25 March 2013 16:23 CET | Version of Record | https://www.mdpi.com/1422-0067/14/4/6556/pdf |
