| article html file updated | 9 February 2020 01:24 CET | Update | https://www.mdpi.com/2079-6412/8/1/12 |
| article html file updated | 29 September 2019 12:51 CEST | Update | - |
| article html file updated | 2 May 2019 05:42 CEST | Update | - |
| article html file updated | 18 April 2019 03:43 CEST | Update | - |
| article html file updated | 28 March 2019 11:40 CET | Update | - |
| article html file updated | 1 February 2018 10:22 CET | Update | - |
| article html file updated | 28 December 2017 11:15 CET | Original file | - |
| article xml uploaded. | 28 December 2017 11:14 CET | Update | https://www.mdpi.com/2079-6412/8/1/12/xml |
| article xml uploaded. | 28 December 2017 11:14 CET | Original file | - |
| article pdf uploaded. | 28 December 2017 11:14 CET | Version of Record | https://www.mdpi.com/2079-6412/8/1/12/pdf |
