| article html file updated | 14 August 2026 13:32 CEST | Update | https://www.mdpi.com/1422-0067/18/4/725 |
| article html file updated | 8 February 2020 02:29 CET | Update | N/A |
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| article pdf uploaded. | 30 March 2017 08:09 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/725/pdf |
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