| article html file updated | 9 February 2020 08:48 CET | Update | https://www.mdpi.com/2306-5710/4/1/21 |
| article html file updated | 1 October 2019 07:49 CEST | Update | - |
| article html file updated | 1 May 2019 13:54 CEST | Update | - |
| article html file updated | 17 April 2019 13:31 CEST | Update | - |
| article html file updated | 29 March 2019 04:21 CET | Update | - |
| article html file updated | 6 March 2018 15:11 CET | Original file | - |
| article xml uploaded. | 6 March 2018 15:09 CET | Update | https://www.mdpi.com/2306-5710/4/1/21/xml |
| article pdf uploaded. | 6 March 2018 15:09 CET | Version of Record | https://www.mdpi.com/2306-5710/4/1/21/pdf |
