| article html file updated | 26 September 2022 11:23 CEST | Original file | https://www.mdpi.com/2504-3900/47/1/21 |
| article pdf uploaded. | 15 June 2020 07:08 CEST | Updated version of record | https://www.mdpi.com/2504-3900/47/1/21/pdf |
| article pdf uploaded. | 13 May 2020 06:11 CEST | Updated version of record | https://www.mdpi.com/2504-3900/47/1/21/pdf-vor |
| article xml file uploaded | 13 May 2020 06:11 CEST | Update | https://www.mdpi.com/2504-3900/47/1/21/xml |
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| article xml file uploaded | 13 May 2020 06:11 CEST | Original file | N/A |
