| article html file updated | 8 February 2020 03:37 CET | Update | https://www.mdpi.com/1660-4601/14/4/421 |
| article html file updated | 24 September 2019 07:57 CEST | Update | - |
| article html file updated | 4 May 2019 02:09 CEST | Update | - |
| article html file updated | 28 April 2017 08:09 CEST | Update | - |
| article html file updated | 19 April 2017 07:33 CEST | Update | - |
| article xml uploaded. | 19 April 2017 07:32 CEST | Update | https://www.mdpi.com/1660-4601/14/4/421/xml |
| article pdf uploaded. | 19 April 2017 07:32 CEST | Updated version of record | https://www.mdpi.com/1660-4601/14/4/421/pdf |
| article html file updated | 14 April 2017 13:45 CEST | Original file | - |
| article pdf uploaded. | 14 April 2017 13:44 CEST | Version of Record | https://www.mdpi.com/1660-4601/14/4/421/pdf-vor |
