| article html file updated | 30 August 2025 03:53 CEST | Update | https://www.mdpi.com/2075-4663/6/2/41 |
| article html file updated | 16 July 2022 20:18 CEST | Update | N/A |
| article html file updated | 9 February 2020 17:02 CET | Update | N/A |
| article html file updated | 3 October 2019 10:33 CEST | Update | N/A |
| article html file updated | 30 April 2019 21:02 CEST | Update | N/A |
| article html file updated | 16 April 2019 21:32 CEST | Update | N/A |
| article html file updated | 29 March 2019 23:26 CET | Update | N/A |
| article html file updated | 25 June 2018 12:40 CEST | Update | N/A |
| article html file updated | 10 May 2018 08:50 CEST | Original file | N/A |
| article pdf uploaded. | 10 May 2018 08:49 CEST | Version of Record | https://www.mdpi.com/2075-4663/6/2/41/pdf |
| article xml uploaded. | 10 May 2018 08:49 CEST | Update | https://www.mdpi.com/2075-4663/6/2/41/xml |
| article xml file uploaded | 10 May 2018 08:49 CEST | Original file | N/A |