| article html file updated | 30 August 2025 02:40 CEST | Update | https://www.mdpi.com/1660-3397/16/2/68 |
| article html file updated | 16 July 2022 09:22 CEST | Update | N/A |
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| article html file updated | 23 February 2018 13:27 CET | Original file | N/A |
| article xml uploaded. | 23 February 2018 13:25 CET | Original file | https://www.mdpi.com/1660-3397/16/2/68/xml |
| article pdf uploaded. | 23 February 2018 13:25 CET | Updated version of record | https://www.mdpi.com/1660-3397/16/2/68/pdf |
| article pdf uploaded. | 20 February 2018 16:35 CET | Version of Record | https://www.mdpi.com/1660-3397/16/2/68/pdf-vor |
