| article html file updated | 23 October 2025 06:17 CEST | Update | https://www.mdpi.com/2076-2615/3/1/274 |
| article html file updated | 6 February 2020 01:06 CET | Update | - |
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| article pdf uploaded. | 19 March 2013 14:40 CET | Version of Record | https://www.mdpi.com/2076-2615/3/1/274/pdf |
