| article html file updated | 30 August 2025 20:46 CEST | Update | https://www.mdpi.com/2218-1997/5/6/139 |
| article html file updated | 19 July 2022 19:41 CEST | Update | N/A |
| article html file updated | 12 February 2020 17:48 CET | Update | N/A |
| article html file updated | 21 October 2019 09:24 CEST | Update | N/A |
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| article html file updated | 5 June 2019 12:09 CEST | Original file | N/A |
| article pdf uploaded. | 5 June 2019 12:08 CEST | Version of Record | https://www.mdpi.com/2218-1997/5/6/139/pdf |
| article xml uploaded. | 5 June 2019 12:08 CEST | Update | https://www.mdpi.com/2218-1997/5/6/139/xml |
| article xml file uploaded | 5 June 2019 12:08 CEST | Original file | N/A |
