| article html file updated | 16 August 2026 01:35 CEST | Update | https://www.mdpi.com/2218-273X/9/6/214 |
| article html file updated | 30 August 2025 20:37 CEST | Update | N/A |
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| article html file updated | 12 February 2020 17:05 CET | Update | N/A |
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| article html file updated | 26 June 2019 14:28 CEST | Original file | N/A |
| article pdf uploaded. | 26 June 2019 14:26 CEST | Updated version of record | https://www.mdpi.com/2218-273X/9/6/214/pdf |
| article xml uploaded. | 26 June 2019 14:26 CEST | Update | https://www.mdpi.com/2218-273X/9/6/214/xml |
| article xml file uploaded | 26 June 2019 14:26 CEST | Update | N/A |
| article pdf uploaded. | 2 June 2019 09:40 CEST | Version of Record | https://www.mdpi.com/2218-273X/9/6/214/pdf-vor |
| article xml file uploaded | 2 June 2019 09:40 CEST | Original file | N/A |
