| article html file updated | 6 February 2020 08:28 CET | Update | https://www.mdpi.com/1422-0067/15/4/5988 |
| article html file updated | 7 May 2019 16:10 CEST | Update | - |
| article html file updated | 21 March 2019 15:13 CET | Update | - |
| article html file updated | 20 August 2015 02:34 CEST | Update | - |
| article html file updated | 12 May 2014 11:38 CEST | Update | - |
| article xml file uploaded | 12 May 2014 11:38 CEST | Update | https://www.mdpi.com/1422-0067/15/4/5988/xml |
| article html file updated | 12 May 2014 10:51 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 10:51 CEST | Original file | - |
| article pdf uploaded. | 9 April 2014 14:02 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/5988/pdf |
