| article html file updated | 9 February 2020 10:40 CET | Update | https://www.mdpi.com/2076-0787/7/2/29 |
| article html file updated | 1 May 2019 09:58 CEST | Update | - |
| article html file updated | 17 April 2019 09:51 CEST | Update | - |
| article html file updated | 29 March 2019 08:25 CET | Update | - |
| article html file updated | 21 March 2018 15:52 CET | Original file | - |
| article xml uploaded. | 21 March 2018 15:50 CET | Original file | https://www.mdpi.com/2076-0787/7/2/29/xml |
| article pdf uploaded. | 21 March 2018 15:50 CET | Version of Record | https://www.mdpi.com/2076-0787/7/2/29/pdf |
