| article html file updated | 14 February 2020 00:33 CET | Update | https://www.mdpi.com/2227-9059/7/4/81 |
| article html file updated | 1 January 2020 05:43 CET | Update | N/A |
| article html file updated | 31 December 2019 11:57 CET | Update | N/A |
| article html file updated | 14 October 2019 07:39 CEST | Original file | N/A |
| article supplementary file uploaded. | 14 October 2019 07:38 CEST | - | https://www.mdpi.com/2227-9059/7/4/81#supplementary |
| article pdf uploaded. | 14 October 2019 07:38 CEST | Version of Record | https://www.mdpi.com/2227-9059/7/4/81/pdf |
| article xml uploaded. | 14 October 2019 07:38 CEST | Update | https://www.mdpi.com/2227-9059/7/4/81/xml |
| article xml file uploaded | 14 October 2019 07:38 CEST | Original file | N/A |