| article html file updated | 9 February 2020 13:21 CET | Update | https://www.mdpi.com/2079-6412/8/4/136 |
| article html file updated | 2 October 2019 11:56 CEST | Update | - |
| article html file updated | 1 May 2019 04:26 CEST | Update | - |
| article html file updated | 17 April 2019 04:43 CEST | Update | - |
| article html file updated | 29 March 2019 14:35 CET | Update | - |
| article html file updated | 1 May 2018 10:46 CEST | Update | - |
| article html file updated | 11 April 2018 10:59 CEST | Original file | - |
| article xml uploaded. | 11 April 2018 10:57 CEST | Original file | https://www.mdpi.com/2079-6412/8/4/136/xml |
| article pdf uploaded. | 11 April 2018 10:57 CEST | Version of Record | https://www.mdpi.com/2079-6412/8/4/136/pdf |
