| article html file updated | 31 August 2025 03:24 CEST | Update | https://www.mdpi.com/2224-2708/8/4/53 |
| article html file updated | 20 July 2022 01:02 CEST | Update | - |
| article html file updated | 14 February 2020 03:25 CET | Update | - |
| article html file updated | 31 December 2019 19:16 CET | Update | - |
| article html file updated | 24 October 2019 06:31 CEST | Original file | - |
| article pdf uploaded. | 24 October 2019 06:29 CEST | Version of Record | https://www.mdpi.com/2224-2708/8/4/53/pdf |
| article xml uploaded. | 24 October 2019 06:29 CEST | Update | https://www.mdpi.com/2224-2708/8/4/53/xml |
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