| article html file updated | 9 February 2020 04:22 CET | Update | https://www.mdpi.com/2311-5629/4/1/8 |
| article html file updated | 30 September 2019 05:35 CEST | Update | - |
| article html file updated | 15 August 2019 07:59 CEST | Update | - |
| article html file updated | 1 May 2019 23:31 CEST | Update | - |
| article html file updated | 17 April 2019 22:06 CEST | Update | - |
| article html file updated | 28 March 2019 18:24 CET | Update | - |
| article html file updated | 25 January 2018 16:52 CET | Original file | - |
| article xml uploaded. | 25 January 2018 16:51 CET | Update | https://www.mdpi.com/2311-5629/4/1/8/xml |
| article xml uploaded. | 25 January 2018 16:51 CET | Update | - |
| article xml uploaded. | 25 January 2018 16:51 CET | Original file | - |
| article pdf uploaded. | 25 January 2018 16:51 CET | Version of Record | https://www.mdpi.com/2311-5629/4/1/8/pdf |
