| article html file updated | 9 February 2020 00:35 CET | Update | https://www.mdpi.com/2073-8994/9/12/321 |
| article html file updated | 29 September 2019 08:10 CEST | Update | - |
| article html file updated | 2 May 2019 07:29 CEST | Update | - |
| article html file updated | 18 April 2019 05:20 CEST | Update | - |
| article html file updated | 2 January 2018 17:41 CET | Update | - |
| article html file updated | 19 December 2017 15:58 CET | Original file | - |
| article xml uploaded. | 19 December 2017 15:56 CET | Update | https://www.mdpi.com/2073-8994/9/12/321/xml |
| article xml uploaded. | 19 December 2017 15:56 CET | Original file | - |
| article pdf uploaded. | 19 December 2017 15:56 CET | Version of Record | https://www.mdpi.com/2073-8994/9/12/321/pdf |
