| article html file updated | 30 August 2025 20:50 CEST | Update | https://www.mdpi.com/2227-7390/7/6/521 |
| article html file updated | 20 July 2022 15:57 CEST | Update | N/A |
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| article html file updated | 21 October 2019 11:35 CEST | Update | N/A |
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| article html file updated | 11 June 2019 07:54 CEST | Update | N/A |
| article pdf uploaded. | 11 June 2019 07:52 CEST | Updated version of record | https://www.mdpi.com/2227-7390/7/6/521/pdf |
| article xml uploaded. | 11 June 2019 07:52 CEST | Update | https://www.mdpi.com/2227-7390/7/6/521/xml |
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| article html file updated | 6 June 2019 13:12 CEST | Original file | N/A |
| article pdf uploaded. | 6 June 2019 13:11 CEST | Version of Record | https://www.mdpi.com/2227-7390/7/6/521/pdf-vor |
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