| article html file updated | 13 February 2020 09:23 CET | Update | https://www.mdpi.com/2297-8739/6/3/40 |
| article html file updated | 26 September 2019 13:37 CEST | Update | N/A |
| article html file updated | 13 August 2019 09:43 CEST | Original file | N/A |
| article pdf uploaded. | 13 August 2019 09:41 CEST | Version of Record | https://www.mdpi.com/2297-8739/6/3/40/pdf |
| article xml uploaded. | 13 August 2019 09:41 CEST | Update | https://www.mdpi.com/2297-8739/6/3/40/xml |
| article xml file uploaded | 13 August 2019 09:41 CEST | Original file | N/A |
