| article html file updated | 12 February 2020 16:26 CET | Update | https://www.mdpi.com/2413-8851/3/2/59 |
| article html file updated | 21 October 2019 00:50 CEST | Update | N/A |
| article html file updated | 30 May 2019 12:42 CEST | Original file | N/A |
| article pdf uploaded. | 30 May 2019 12:41 CEST | Version of Record | https://www.mdpi.com/2413-8851/3/2/59/pdf |
| article xml uploaded. | 30 May 2019 12:41 CEST | Update | https://www.mdpi.com/2413-8851/3/2/59/xml |
| article xml file uploaded | 30 May 2019 12:41 CEST | Original file | N/A |
