| article html file updated | 6 February 2020 08:44 CET | Update | https://www.mdpi.com/1422-0067/15/4/6815 |
| article html file updated | 7 May 2019 15:37 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:50 CET | Update | N/A |
| article html file updated | 20 August 2015 03:57 CEST | Update | N/A |
| article html file updated | 12 May 2014 11:42 CEST | Update | N/A |
| article xml file uploaded | 12 May 2014 11:42 CEST | Update | https://www.mdpi.com/1422-0067/15/4/6815/xml |
| article html file updated | 12 May 2014 11:12 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2014 11:11 CEST | Original file | N/A |
| article pdf uploaded. | 22 April 2014 09:35 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/6815/pdf |
