| article html file updated | 30 August 2025 21:03 CEST | Update | https://www.mdpi.com/2304-8158/8/6/208 |
| article html file updated | 20 July 2022 15:41 CEST | Update | - |
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| article pdf uploaded. | 22 June 2019 11:24 CEST | Updated version of record | https://www.mdpi.com/2304-8158/8/6/208/pdf |
| article xml uploaded. | 22 June 2019 11:24 CEST | Update | https://www.mdpi.com/2304-8158/8/6/208/xml |
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| article pdf uploaded. | 12 June 2019 16:27 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/6/208/pdf-vor |
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