| article html file updated | 15 August 2026 15:35 CEST | Update | https://www.mdpi.com/2218-0532/87/1/4 |
| article html file updated | 11 February 2020 11:40 CET | Update | N/A |
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| article html file updated | 26 January 2019 09:44 CET | Original file | N/A |
| article pdf uploaded. | 26 January 2019 09:43 CET | Version of Record | https://www.mdpi.com/2218-0532/87/1/4/pdf |
| article xml uploaded. | 26 January 2019 09:43 CET | Update | https://www.mdpi.com/2218-0532/87/1/4/xml |
| article xml file uploaded | 26 January 2019 09:43 CET | Original file | N/A |
