| article html file updated | 15 August 2026 06:44 CEST | Update | https://www.mdpi.com/2313-0105/4/3/40 |
| article html file updated | 30 August 2025 06:32 CEST | Update | N/A |
| article html file updated | 17 July 2022 01:55 CEST | Update | N/A |
| article html file updated | 10 February 2020 08:35 CET | Update | N/A |
| article html file updated | 7 October 2019 07:26 CEST | Update | N/A |
| article html file updated | 29 April 2019 10:37 CEST | Update | N/A |
| article html file updated | 15 April 2019 06:17 CEST | Update | N/A |
| article html file updated | 31 March 2019 13:55 CEST | Update | N/A |
| article html file updated | 1 September 2018 04:31 CEST | Original file | N/A |
| article pdf uploaded. | 1 September 2018 04:30 CEST | Version of Record | https://www.mdpi.com/2313-0105/4/3/40/pdf |
| article xml uploaded. | 1 September 2018 04:30 CEST | Update | https://www.mdpi.com/2313-0105/4/3/40/xml |
| article xml file uploaded | 1 September 2018 04:30 CEST | Original file | N/A |
