| article html file updated | 13 August 2026 15:30 CEST | Update | https://www.mdpi.com/2304-6732/2/1/270 |
| article html file updated | 6 February 2020 16:26 CET | Update | N/A |
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| article pdf uploaded. | 9 March 2015 14:23 CET | Version of Record | https://www.mdpi.com/2304-6732/2/1/270/pdf |
