| article html file updated | 30 August 2025 07:00 CEST | Update | https://www.mdpi.com/2309-608X/4/3/111 |
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| article pdf uploaded. | 17 September 2018 08:49 CEST | Version of Record | https://www.mdpi.com/2309-608X/4/3/111/pdf |
| article xml uploaded. | 17 September 2018 08:49 CEST | Update | https://www.mdpi.com/2309-608X/4/3/111/xml |
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