| article html file updated | 6 February 2020 21:15 CET | Update | https://www.mdpi.com/1424-8220/15/8/18801 |
| article html file updated | 6 May 2019 14:36 CEST | Update | - |
| article html file updated | 26 March 2019 07:45 CET | Update | - |
| article html file updated | 9 September 2015 11:47 CEST | Original file | - |
| article xml file uploaded | 9 September 2015 11:47 CEST | Original file | https://www.mdpi.com/1424-8220/15/8/18801/xml |
| article pdf uploaded. | 14 August 2015 08:26 CEST | Updated version of record | https://www.mdpi.com/1424-8220/15/8/18801/pdf |
| article pdf uploaded. | 31 July 2015 08:54 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/8/18801/pdf-vor |
