| article html file updated | 31 August 2025 05:40 CEST | Update | https://www.mdpi.com/2311-553X/5/4/54 |
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| article html file updated | 14 February 2020 15:37 CET | Update | - |
| article html file updated | 19 December 2019 05:50 CET | Original file | - |
| article pdf uploaded. | 19 December 2019 05:48 CET | Updated version of record | https://www.mdpi.com/2311-553X/5/4/54/pdf |
| article xml uploaded. | 19 December 2019 05:48 CET | Update | https://www.mdpi.com/2311-553X/5/4/54/xml |
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| article pdf uploaded. | 3 December 2019 17:04 CET | Version of Record | https://www.mdpi.com/2311-553X/5/4/54/pdf-vor |
| article xml file uploaded | 3 December 2019 17:04 CET | Original file | - |
