| article html file updated | 30 August 2025 20:37 CEST | Update | https://www.mdpi.com/2079-9284/6/2/34 |
| article html file updated | 19 July 2022 19:30 CEST | Update | N/A |
| article html file updated | 12 February 2020 17:01 CET | Update | N/A |
| article html file updated | 21 October 2019 04:32 CEST | Update | N/A |
| article html file updated | 1 June 2019 11:49 CEST | Original file | N/A |
| article pdf uploaded. | 1 June 2019 11:47 CEST | Version of Record | https://www.mdpi.com/2079-9284/6/2/34/pdf |
| article xml uploaded. | 1 June 2019 11:47 CEST | Update | https://www.mdpi.com/2079-9284/6/2/34/xml |
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