| article html file updated | 11 February 2020 07:37 CET | Update | https://www.mdpi.com/2311-5521/4/1/6 |
| article html file updated | 13 October 2019 01:59 CEST | Update | - |
| article html file updated | 27 April 2019 09:27 CEST | Update | - |
| article html file updated | 13 April 2019 05:26 CEST | Update | - |
| article html file updated | 10 April 2019 21:14 CEST | Update | - |
| article html file updated | 3 April 2019 00:17 CEST | Update | - |
| article html file updated | 9 January 2019 09:46 CET | Original file | - |
| article pdf uploaded. | 9 January 2019 09:44 CET | Version of Record | https://www.mdpi.com/2311-5521/4/1/6/pdf |
| article xml uploaded. | 9 January 2019 09:44 CET | Update | https://www.mdpi.com/2311-5521/4/1/6/xml |
| article xml file uploaded | 9 January 2019 09:44 CET | Original file | - |
