| article html file updated | 31 August 2025 12:20 CEST | Update | https://www.mdpi.com/2304-8158/9/2/231 |
| article html file updated | 20 July 2022 20:51 CEST | Update | - |
| article html file updated | 7 March 2020 14:47 CET | Update | - |
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| article html file updated | 27 February 2020 13:48 CET | Update | - |
| article pdf uploaded. | 27 February 2020 13:47 CET | Updated version of record | https://www.mdpi.com/2304-8158/9/2/231/pdf |
| article xml uploaded. | 27 February 2020 13:46 CET | Update | https://www.mdpi.com/2304-8158/9/2/231/xml |
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| article html file updated | 27 February 2020 13:42 CET | Update | - |
| article pdf uploaded. | 27 February 2020 13:41 CET | Updated version of record | https://www.mdpi.com/2304-8158/9/2/231/pdf-vor |
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| article html file updated | 27 February 2020 13:23 CET | Original file | - |
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| article pdf uploaded. | 21 February 2020 13:35 CET | Version of Record | https://www.mdpi.com/2304-8158/9/2/231/pdf-vor |
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