| article html file updated | 31 August 2025 17:36 CEST | Update | https://www.mdpi.com/1999-4907/11/4/448 | 
| article html file updated | 21 July 2022 02:04 CEST | Update | - | 
| article html file updated | 17 April 2020 06:40 CEST | Update | - | 
| article pdf uploaded. | 17 April 2020 06:39 CEST | Updated version of record | https://www.mdpi.com/1999-4907/11/4/448/pdf | 
| article xml uploaded. | 17 April 2020 06:39 CEST | Update | https://www.mdpi.com/1999-4907/11/4/448/xml | 
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| article html file updated | 16 April 2020 14:00 CEST | Original file | - | 
| article pdf uploaded. | 16 April 2020 13:59 CEST | Version of Record | https://www.mdpi.com/1999-4907/11/4/448/pdf-vor | 
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