| article html file updated | 12 February 2020 06:38 CET | Update | https://www.mdpi.com/2227-9059/7/2/31 |
| article html file updated | 18 October 2019 16:55 CEST | Update | N/A |
| article html file updated | 5 July 2019 16:19 CEST | Update | N/A |
| article html file updated | 29 April 2019 12:22 CEST | Original file | N/A |
| article pdf uploaded. | 29 April 2019 12:20 CEST | Updated version of record | https://www.mdpi.com/2227-9059/7/2/31/pdf |
| article xml uploaded. | 29 April 2019 12:20 CEST | Update | https://www.mdpi.com/2227-9059/7/2/31/xml |
| article xml file uploaded | 29 April 2019 12:20 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2019 16:55 CEST | Version of Record | https://www.mdpi.com/2227-9059/7/2/31/pdf-vor |
| article xml file uploaded | 19 April 2019 16:55 CEST | Original file | N/A |
