| article html file updated | 30 August 2025 02:27 CEST | Update | https://www.mdpi.com/2076-3417/8/2/221 |
| article html file updated | 16 July 2022 08:57 CEST | Update | N/A |
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| article xml uploaded. | 2 February 2018 10:55 CET | Original file | https://www.mdpi.com/2076-3417/8/2/221/xml |
| article pdf uploaded. | 2 February 2018 10:55 CET | Updated version of record | https://www.mdpi.com/2076-3417/8/2/221/pdf |
| article pdf uploaded. | 31 January 2018 17:26 CET | Version of Record | https://www.mdpi.com/2076-3417/8/2/221/pdf-vor |
