| article html file updated | 13 February 2020 12:44 CET | Update | https://www.mdpi.com/2297-8739/6/3/42 |
| article html file updated | 26 September 2019 13:37 CEST | Update | N/A |
| article html file updated | 30 August 2019 12:20 CEST | Original file | N/A |
| article pdf uploaded. | 30 August 2019 12:18 CEST | Updated version of record | https://www.mdpi.com/2297-8739/6/3/42/pdf |
| article xml uploaded. | 30 August 2019 12:18 CEST | Update | https://www.mdpi.com/2297-8739/6/3/42/xml |
| article xml file uploaded | 30 August 2019 12:18 CEST | Update | N/A |
| article pdf uploaded. | 26 August 2019 16:59 CEST | Version of Record | https://www.mdpi.com/2297-8739/6/3/42/pdf-vor |
| article xml file uploaded | 26 August 2019 16:59 CEST | Original file | N/A |
