| article html file updated | 12 November 2022 08:59 CET | Update | https://www.mdpi.com/1420-3049/3/2/31 |
| article html file updated | 5 February 2020 11:10 CET | Update | N/A |
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| article xml uploaded. | 18 July 2017 03:13 CEST | Original file | https://www.mdpi.com/1420-3049/3/2/31/xml |
