| article html file updated | 6 February 2020 22:12 CET | Update | https://www.mdpi.com/1424-8220/15/9/21294 |
| article html file updated | 6 May 2019 12:35 CEST | Update | - |
| article html file updated | 26 March 2019 09:35 CET | Update | - |
| article html file updated | 9 October 2015 11:58 CEST | Original file | - |
| article xml file uploaded | 9 October 2015 11:58 CEST | Original file | https://www.mdpi.com/1424-8220/15/9/21294/xml |
| article pdf uploaded. | 28 August 2015 09:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/9/21294/pdf |
