| article html file updated | 9 February 2020 07:01 CET | Update | https://www.mdpi.com/2226-4310/5/1/20 |
| article html file updated | 1 May 2019 17:37 CEST | Update | - |
| article html file updated | 17 April 2019 16:57 CEST | Update | - |
| article html file updated | 29 March 2019 00:08 CET | Update | - |
| article html file updated | 26 March 2018 16:03 CEST | Update | - |
| article html file updated | 23 February 2018 11:23 CET | Original file | - |
| article xml uploaded. | 23 February 2018 11:22 CET | Original file | https://www.mdpi.com/2226-4310/5/1/20/xml |
| article pdf uploaded. | 23 February 2018 11:22 CET | Updated version of record | https://www.mdpi.com/2226-4310/5/1/20/pdf |
| article pdf uploaded. | 18 February 2018 11:01 CET | Version of Record | https://www.mdpi.com/2226-4310/5/1/20/pdf-vor |
