| article html file updated | 30 August 2025 06:00 CEST | Update | https://www.mdpi.com/2227-9040/6/3/33 |
| article html file updated | 17 July 2022 00:46 CEST | Update | - |
| article html file updated | 10 February 2020 05:33 CET | Update | - |
| article html file updated | 6 October 2019 14:07 CEST | Update | - |
| article html file updated | 29 April 2019 17:36 CEST | Update | - |
| article html file updated | 15 April 2019 12:55 CEST | Update | - |
| article html file updated | 31 March 2019 07:23 CEST | Update | - |
| article html file updated | 25 September 2018 12:23 CEST | Update | - |
| article html file updated | 11 August 2018 09:14 CEST | Original file | - |
| article pdf uploaded. | 11 August 2018 09:13 CEST | Version of Record | https://www.mdpi.com/2227-9040/6/3/33/pdf |
| article xml uploaded. | 11 August 2018 09:13 CEST | Update | https://www.mdpi.com/2227-9040/6/3/33/xml |
| article xml file uploaded | 11 August 2018 09:13 CEST | Original file | - |
