| article html file updated | 6 February 2020 08:33 CET | Update | https://www.mdpi.com/1422-0067/15/4/6241 |
| article html file updated | 7 May 2019 16:00 CEST | Update | - |
| article html file updated | 21 March 2019 15:23 CET | Update | - |
| article html file updated | 20 August 2015 03:01 CEST | Update | - |
| article html file updated | 12 May 2014 11:39 CEST | Update | - |
| article xml file uploaded | 12 May 2014 11:39 CEST | Update | https://www.mdpi.com/1422-0067/15/4/6241/xml |
| article html file updated | 12 May 2014 10:58 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 10:57 CEST | Original file | - |
| article pdf uploaded. | 11 April 2014 15:43 CEST | Updated version of record | https://www.mdpi.com/1422-0067/15/4/6241/pdf |
| article pdf uploaded. | 11 April 2014 10:43 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/6241/pdf-vor |
