| article html file updated | 8 February 2020 16:52 CET | Update | https://www.mdpi.com/2079-4983/8/4/42 |
| article html file updated | 27 September 2019 07:18 CEST | Update | - |
| article html file updated | 3 May 2019 00:40 CEST | Update | - |
| article html file updated | 11 December 2018 08:32 CET | Update | - |
| article html file updated | 2 January 2018 20:34 CET | Update | - |
| article html file updated | 25 September 2017 05:52 CEST | Original file | - |
| article xml uploaded. | 25 September 2017 05:50 CEST | Original file | https://www.mdpi.com/2079-4983/8/4/42/xml |
| article pdf uploaded. | 25 September 2017 05:50 CEST | Updated version of record | https://www.mdpi.com/2079-4983/8/4/42/pdf |
| article pdf uploaded. | 22 September 2017 12:17 CEST | Version of Record | https://www.mdpi.com/2079-4983/8/4/42/pdf-vor |
