| article html file updated | 7 February 2020 16:22 CET | Update | https://www.mdpi.com/2313-4321/1/3/321 |
| article html file updated | 5 May 2019 01:38 CEST | Update | N/A |
| article html file updated | 14 October 2016 12:21 CEST | Original file | N/A |
| article xml uploaded. | 14 October 2016 12:20 CEST | Original file | https://www.mdpi.com/2313-4321/1/3/321/xml |
| article pdf uploaded. | 14 October 2016 12:20 CEST | Version of Record | https://www.mdpi.com/2313-4321/1/3/321/pdf |
