| article html file updated | 6 February 2020 17:22 CET | Update | https://www.mdpi.com/1424-8220/15/4/8109 |
| article html file updated | 6 May 2019 22:29 CEST | Update | - |
| article html file updated | 26 March 2019 00:11 CET | Update | - |
| article html file updated | 21 August 2015 10:02 CEST | Update | - |
| article html file updated | 12 May 2015 12:25 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:25 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8109/xml |
| article pdf uploaded. | 7 April 2015 16:01 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8109/pdf |
