| article html file updated | 14 August 2026 10:19 CEST | Update | https://www.mdpi.com/2311-553X/1/2/167 |
| article html file updated | 6 February 2020 23:07 CET | Update | N/A |
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| article pdf uploaded. | 22 September 2015 17:04 CEST | Version of Record | https://www.mdpi.com/2311-553X/1/2/167/pdf |
