| article html file updated | 14 August 2026 19:27 CEST | Update | https://www.mdpi.com/2079-9292/6/4/102 |
| article html file updated | 8 February 2020 22:01 CET | Update | N/A |
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| article xml uploaded. | 23 November 2017 14:22 CET | Update | https://www.mdpi.com/2079-9292/6/4/102/xml |
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| article pdf uploaded. | 23 November 2017 14:22 CET | Version of Record | https://www.mdpi.com/2079-9292/6/4/102/pdf |
