| article html file updated | 6 February 2020 08:44 CET | Update | https://www.mdpi.com/1422-0067/15/4/6772 |
| article html file updated | 7 May 2019 15:38 CEST | Update | - |
| article html file updated | 21 March 2019 15:49 CET | Update | - |
| article html file updated | 20 August 2015 03:56 CEST | Update | - |
| article html file updated | 12 May 2014 11:42 CEST | Update | - |
| article xml file uploaded | 12 May 2014 11:42 CEST | Update | https://www.mdpi.com/1422-0067/15/4/6772/xml |
| article html file updated | 12 May 2014 11:11 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 11:10 CEST | Original file | - |
| article pdf uploaded. | 22 April 2014 09:23 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/6772/pdf |
