| article html file updated | 31 August 2025 21:06 CEST | Update | https://www.mdpi.com/2227-9032/8/2/139 |
| article html file updated | 21 July 2022 05:30 CEST | Update | N/A |
| article html file updated | 10 June 2020 04:55 CEST | Original file | N/A |
| article pdf uploaded. | 10 June 2020 04:53 CEST | Updated version of record | https://www.mdpi.com/2227-9032/8/2/139/pdf |
| article xml uploaded. | 10 June 2020 04:53 CEST | Update | https://www.mdpi.com/2227-9032/8/2/139/xml |
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| article pdf uploaded. | 20 May 2020 17:25 CEST | Updated version of record | https://www.mdpi.com/2227-9032/8/2/139/pdf-vor |
| article xml file uploaded | 20 May 2020 17:25 CEST | Update | N/A |
| article pdf uploaded. | 20 May 2020 17:25 CEST | Version of Record | https://www.mdpi.com/2227-9032/8/2/139/pdf-vor |
| article xml file uploaded | 20 May 2020 17:25 CEST | Original file | N/A |
