| article html file updated | 15 August 2026 07:20 CEST | Update | https://www.mdpi.com/2077-0375/8/3/81 |
| article html file updated | 10 February 2020 10:34 CET | Update | N/A |
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| article pdf uploaded. | 12 September 2018 13:14 CEST | Version of Record | https://www.mdpi.com/2077-0375/8/3/81/pdf |
| article xml uploaded. | 12 September 2018 13:14 CEST | Update | https://www.mdpi.com/2077-0375/8/3/81/xml |
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