| article html file updated | 6 February 2020 17:20 CET | Update | https://www.mdpi.com/1424-8220/15/4/7969 |
| article html file updated | 6 May 2019 22:33 CEST | Update | - |
| article html file updated | 26 March 2019 00:07 CET | Update | - |
| article html file updated | 21 August 2015 10:00 CEST | Update | - |
| article html file updated | 12 May 2015 12:24 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:24 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/7969/xml |
| article pdf uploaded. | 10 April 2015 11:04 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/7969/pdf |
| article pdf uploaded. | 3 April 2015 13:17 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/7969/pdf-vor |
