| article html file updated | 12 February 2020 18:01 CET | Update | https://www.mdpi.com/2305-7084/3/2/59 |
| article html file updated | 21 October 2019 10:43 CEST | Update | N/A |
| article html file updated | 6 June 2019 09:38 CEST | Original file | N/A |
| article pdf uploaded. | 6 June 2019 09:15 CEST | Version of Record | https://www.mdpi.com/2305-7084/3/2/59/pdf |
| article xml uploaded. | 6 June 2019 09:15 CEST | Update | https://www.mdpi.com/2305-7084/3/2/59/xml |
| article xml file uploaded | 6 June 2019 09:15 CEST | Original file | N/A |
