| article html file updated | 30 August 2025 20:52 CEST | Update | https://www.mdpi.com/2304-8158/8/6/197 |
| article html file updated | 20 July 2022 15:54 CEST | Update | - |
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| article html file updated | 21 October 2019 13:13 CEST | Update | - |
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| article pdf uploaded. | 22 June 2019 04:40 CEST | Updated version of record | https://www.mdpi.com/2304-8158/8/6/197/pdf |
| article xml uploaded. | 22 June 2019 04:40 CEST | Update | https://www.mdpi.com/2304-8158/8/6/197/xml |
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| article pdf uploaded. | 7 June 2019 16:06 CEST | Version of Record | https://www.mdpi.com/2304-8158/8/6/197/pdf-vor |
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