| article html file updated | 9 February 2020 04:26 CET | Update | https://www.mdpi.com/2076-0787/7/1/11 |
| article html file updated | 1 May 2019 23:23 CEST | Update | - |
| article html file updated | 17 April 2019 21:59 CEST | Update | - |
| article html file updated | 28 March 2019 18:32 CET | Update | - |
| article html file updated | 26 January 2018 09:48 CET | Original file | - |
| article xml uploaded. | 26 January 2018 09:46 CET | Original file | https://www.mdpi.com/2076-0787/7/1/11/xml |
| article pdf uploaded. | 26 January 2018 09:46 CET | Version of Record | https://www.mdpi.com/2076-0787/7/1/11/pdf |
