| article html file updated | 30 August 2025 06:39 CEST | Update | https://www.mdpi.com/2227-9091/6/3/91 |
| article html file updated | 20 July 2022 16:36 CEST | Update | - |
| article html file updated | 10 February 2020 09:17 CET | Update | - |
| article html file updated | 29 April 2019 09:08 CEST | Update | - |
| article html file updated | 15 April 2019 04:50 CEST | Update | - |
| article html file updated | 31 March 2019 15:21 CEST | Update | - |
| article html file updated | 22 September 2018 12:32 CEST | Update | - |
| article html file updated | 5 September 2018 09:38 CEST | Original file | - |
| article pdf uploaded. | 5 September 2018 09:37 CEST | Version of Record | https://www.mdpi.com/2227-9091/6/3/91/pdf |
| article xml uploaded. | 5 September 2018 09:37 CEST | Update | https://www.mdpi.com/2227-9091/6/3/91/xml |
| article xml file uploaded | 5 September 2018 09:37 CEST | Original file | - |
