| article html file updated | 30 August 2025 04:13 CEST | Update | https://www.mdpi.com/2227-9032/6/2/57 |
| article html file updated | 16 July 2022 20:55 CEST | Update | N/A |
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| article html file updated | 1 June 2018 10:21 CEST | Original file | N/A |
| article pdf uploaded. | 1 June 2018 09:46 CEST | Version of Record | https://www.mdpi.com/2227-9032/6/2/57/pdf |
| article xml uploaded. | 1 June 2018 09:46 CEST | Update | https://www.mdpi.com/2227-9032/6/2/57/xml |
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