| article html file updated | 31 August 2025 06:44 CEST | Update | https://www.mdpi.com/2309-608X/5/4/117 |
| article html file updated | 19 July 2022 21:32 CEST | Update | - |
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| article html file updated | 31 December 2019 20:03 CET | Update | - |
| article html file updated | 17 December 2019 04:48 CET | Original file | - |
| article pdf uploaded. | 17 December 2019 04:47 CET | Version of Record | https://www.mdpi.com/2309-608X/5/4/117/pdf |
| article xml uploaded. | 17 December 2019 04:47 CET | Update | https://www.mdpi.com/2309-608X/5/4/117/xml |
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