| article html file updated | 6 February 2020 08:21 CET | Update | https://www.mdpi.com/1422-0067/15/4/5680 |
| article html file updated | 7 May 2019 16:25 CEST | Update | - |
| article html file updated | 21 March 2019 14:56 CET | Update | - |
| article html file updated | 20 August 2015 02:07 CEST | Update | - |
| article html file updated | 12 May 2014 11:37 CEST | Update | - |
| article xml file uploaded | 12 May 2014 11:37 CEST | Update | https://www.mdpi.com/1422-0067/15/4/5680/xml |
| article html file updated | 12 May 2014 10:44 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 10:43 CEST | Original file | - |
| article pdf uploaded. | 3 April 2014 09:23 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/5680/pdf |
