| article html file updated | 7 February 2020 12:24 CET | Update | https://www.mdpi.com/2313-4321/1/2/242 |
| article html file updated | 5 May 2019 08:51 CEST | Update | - |
| article html file updated | 27 March 2019 11:35 CET | Update | - |
| article html file updated | 27 July 2016 12:01 CEST | Original file | - |
| article xml uploaded. | 27 July 2016 12:00 CEST | Original file | https://www.mdpi.com/2313-4321/1/2/242/xml |
| article pdf uploaded. | 27 July 2016 12:00 CEST | Version of Record | https://www.mdpi.com/2313-4321/1/2/242/pdf |
