| article html file updated | 6 February 2020 08:41 CET | Update | https://www.mdpi.com/1422-0067/15/4/6657 |
| article html file updated | 7 May 2019 15:44 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:42 CET | Update | N/A |
| article html file updated | 20 August 2015 03:41 CEST | Update | N/A |
| article html file updated | 12 May 2014 11:41 CEST | Update | N/A |
| article xml file uploaded | 12 May 2014 11:41 CEST | Update | https://www.mdpi.com/1422-0067/15/4/6657/xml |
| article html file updated | 12 May 2014 11:08 CEST | Original file | N/A |
| article xml file uploaded | 12 May 2014 11:08 CEST | Original file | N/A |
| article pdf uploaded. | 17 April 2014 13:22 CEST | Version of Record | https://www.mdpi.com/1422-0067/15/4/6657/pdf |
