| article html file updated | 6 February 2020 17:43 CET | Update | https://www.mdpi.com/1424-8220/15/4/8981 |
| article html file updated | 6 May 2019 21:49 CEST | Update | - |
| article html file updated | 26 March 2019 00:47 CET | Update | - |
| article html file updated | 21 August 2015 10:38 CEST | Update | - |
| article html file updated | 12 May 2015 12:29 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:29 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8981/xml |
| article pdf uploaded. | 17 April 2015 08:24 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/4/8981/pdf |
| article pdf uploaded. | 16 April 2015 13:15 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8981/pdf-vor |
