| article html file updated | 30 August 2025 21:15 CEST | Update | https://www.mdpi.com/2304-8158/8/6/213 |
| article html file updated | 20 July 2022 15:27 CEST | Update | - |
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| article html file updated | 22 October 2019 00:56 CEST | Update | - |
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| article pdf uploaded. | 17 June 2019 13:07 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/6/213/pdf |
| article xml uploaded. | 17 June 2019 13:07 CEST | Update | https://www.mdpi.com/2304-8158/8/6/213/xml |
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