| article html file updated | 30 August 2025 03:19 CEST | Update | https://www.mdpi.com/2227-7072/6/2/39 |
| article html file updated | 16 July 2022 10:26 CEST | Update | N/A |
| article html file updated | 9 February 2020 12:22 CET | Update | N/A |
| article html file updated | 1 May 2019 06:25 CEST | Update | N/A |
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| article html file updated | 27 June 2018 20:19 CEST | Update | N/A |
| article html file updated | 3 April 2018 14:03 CEST | Original file | N/A |
| article pdf uploaded. | 3 April 2018 11:25 CEST | Version of Record | https://www.mdpi.com/2227-7072/6/2/39/pdf |
| article xml uploaded. | 3 April 2018 11:25 CEST | Update | https://www.mdpi.com/2227-7072/6/2/39/xml |
| article xml file uploaded | 3 April 2018 11:25 CEST | Original file | N/A |
