| article html file updated | 9 February 2020 14:00 CET | Update | https://www.mdpi.com/1420-3049/23/4/921 |
| article html file updated | 2 October 2019 16:00 CEST | Update | - |
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| article html file updated | 4 May 2018 13:06 CEST | Update | - |
| article html file updated | 16 April 2018 13:54 CEST | Original file | - |
| article pdf uploaded. | 16 April 2018 13:53 CEST | Version of Record | https://www.mdpi.com/1420-3049/23/4/921/pdf |
| article xml uploaded. | 16 April 2018 13:53 CEST | Update | https://www.mdpi.com/1420-3049/23/4/921/xml |
| article xml file uploaded | 16 April 2018 13:53 CEST | Original file | - |
