| article html file updated | 30 August 2025 21:15 CEST | Update | https://www.mdpi.com/2227-9091/7/2/68 |
| article html file updated | 21 August 2025 21:23 CEST | Update | - |
| article html file updated | 12 February 2020 20:13 CET | Update | - |
| article html file updated | 22 October 2019 00:46 CEST | Update | - |
| article html file updated | 5 July 2019 07:21 CEST | Update | - |
| article html file updated | 17 June 2019 12:28 CEST | Original file | - |
| article pdf uploaded. | 17 June 2019 12:27 CEST | Version of Record | https://www.mdpi.com/2227-9091/7/2/68/pdf |
| article xml uploaded. | 17 June 2019 12:27 CEST | Update | https://www.mdpi.com/2227-9091/7/2/68/xml |
| article xml file uploaded | 17 June 2019 12:27 CEST | Original file | - |
