| article html file updated | 30 August 2025 21:06 CEST | Update | https://www.mdpi.com/2304-8158/8/6/209 |
| article html file updated | 20 July 2022 15:38 CEST | Update | - |
| article html file updated | 12 February 2020 19:31 CET | Update | - |
| article html file updated | 21 October 2019 20:27 CEST | Update | - |
| article html file updated | 24 June 2019 09:08 CEST | Original file | - |
| article pdf uploaded. | 24 June 2019 09:07 CEST | Updated version of record | https://www.mdpi.com/2304-8158/8/6/209/pdf |
| article xml uploaded. | 24 June 2019 09:07 CEST | Update | https://www.mdpi.com/2304-8158/8/6/209/xml |
| article xml file uploaded | 24 June 2019 09:07 CEST | Update | - |
| article pdf uploaded. | 18 June 2019 11:56 CEST | Updated version of record | https://www.mdpi.com/2304-8158/8/6/209/pdf-vor |
| article pdf uploaded. | 13 June 2019 15:07 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/6/209/pdf-vor |
| article xml file uploaded | 13 June 2019 15:07 CEST | Original file | - |
