| article html file updated | 7 February 2020 11:46 CET | Update | https://www.mdpi.com/2313-4321/1/2/232 |
| article html file updated | 5 May 2019 10:02 CEST | Update | - |
| article html file updated | 27 March 2019 10:24 CET | Update | - |
| article html file updated | 16 July 2016 06:27 CEST | Original file | - |
| article xml uploaded. | 16 July 2016 06:25 CEST | Original file | https://www.mdpi.com/2313-4321/1/2/232/xml |
| article pdf uploaded. | 16 July 2016 06:25 CEST | Version of Record | https://www.mdpi.com/2313-4321/1/2/232/pdf |
