| article html file updated | 13 August 2026 12:15 CEST | Update | https://www.mdpi.com/2077-0383/4/2/204 |
| article html file updated | 6 February 2020 15:30 CET | Update | N/A |
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| article pdf uploaded. | 29 January 2015 10:29 CET | Updated version of record | https://www.mdpi.com/2077-0383/4/2/204/pdf |
| article pdf uploaded. | 27 January 2015 13:32 CET | Version of Record | https://www.mdpi.com/2077-0383/4/2/204/pdf-vor |
