| article html file updated | 16 August 2026 13:01 CEST | Update | https://www.mdpi.com/2409-9287/4/3/53 |
| article html file updated | 13 February 2020 15:53 CET | Update | N/A |
| article html file updated | 9 September 2019 11:27 CEST | Original file | N/A |
| article pdf uploaded. | 9 September 2019 11:26 CEST | Updated version of record | https://www.mdpi.com/2409-9287/4/3/53/pdf |
| article xml uploaded. | 9 September 2019 11:26 CEST | Update | https://www.mdpi.com/2409-9287/4/3/53/xml |
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| article pdf uploaded. | 6 September 2019 16:54 CEST | Version of Record | https://www.mdpi.com/2409-9287/4/3/53/pdf-vor |
| article xml file uploaded | 6 September 2019 16:54 CEST | Original file | N/A |
