| article html file updated | 9 February 2020 13:42 CET | Update | https://www.mdpi.com/2311-5629/4/2/23 |
| article html file updated | 2 October 2019 14:10 CEST | Update | - |
| article html file updated | 1 May 2019 03:44 CEST | Update | - |
| article html file updated | 17 April 2019 04:06 CEST | Update | - |
| article html file updated | 29 March 2019 15:23 CET | Update | - |
| article html file updated | 13 April 2018 17:14 CEST | Original file | - |
| article xml uploaded. | 13 April 2018 17:13 CEST | Original file | https://www.mdpi.com/2311-5629/4/2/23/xml |
| article pdf uploaded. | 13 April 2018 17:13 CEST | Version of Record | https://www.mdpi.com/2311-5629/4/2/23/pdf |
