| article html file updated | 31 August 2025 06:19 CEST | Update | https://www.mdpi.com/2304-8158/8/12/668 |
| article html file updated | 19 July 2022 21:55 CEST | Update | - |
| article html file updated | 14 February 2020 17:52 CET | Update | - |
| article html file updated | 15 January 2020 13:34 CET | Update | - |
| article html file updated | 19 December 2019 07:42 CET | Original file | - |
| article pdf uploaded. | 19 December 2019 07:40 CET | Updated version of record | https://www.mdpi.com/2304-8158/8/12/668/pdf |
| article xml uploaded. | 19 December 2019 07:40 CET | Update | https://www.mdpi.com/2304-8158/8/12/668/xml |
| article xml file uploaded | 19 December 2019 07:40 CET | Update | - |
| article pdf uploaded. | 11 December 2019 15:20 CET | Version of Record | https://www.mdpi.com/2304-8158/8/12/668/pdf-vor |
| article xml file uploaded | 11 December 2019 15:20 CET | Original file | - |