| article html file updated | 30 August 2025 07:35 CEST | Update | https://www.mdpi.com/2227-7099/6/4/53 |
| article html file updated | 17 July 2022 04:22 CEST | Update | N/A |
| article html file updated | 10 February 2020 14:38 CET | Update | N/A |
| article html file updated | 8 October 2019 18:39 CEST | Update | N/A |
| article html file updated | 28 April 2019 22:30 CEST | Update | N/A |
| article html file updated | 14 April 2019 17:43 CEST | Update | N/A |
| article html file updated | 1 April 2019 03:01 CEST | Update | N/A |
| article html file updated | 26 December 2018 05:43 CET | Update | N/A |
| article html file updated | 8 October 2018 14:12 CEST | Original file | N/A |
| article pdf uploaded. | 8 October 2018 14:12 CEST | Version of Record | https://www.mdpi.com/2227-7099/6/4/53/pdf |
| article xml uploaded. | 8 October 2018 14:12 CEST | Update | https://www.mdpi.com/2227-7099/6/4/53/xml |
| article xml file uploaded | 8 October 2018 14:12 CEST | Original file | N/A |
