| article html file updated | 6 February 2020 17:10 CET | Update | https://www.mdpi.com/1424-8220/15/4/7768 |
| article html file updated | 6 May 2019 22:49 CEST | Update | - |
| article html file updated | 25 March 2019 23:52 CET | Update | - |
| article html file updated | 21 August 2015 09:42 CEST | Update | - |
| article html file updated | 12 May 2015 12:23 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:23 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/7768/xml |
| article pdf uploaded. | 31 March 2015 14:25 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/7768/pdf |
