| article html file updated | 14 August 2026 18:06 CEST | Update | https://www.mdpi.com/2304-6740/5/4/67 |
| article html file updated | 8 February 2020 18:02 CET | Update | N/A |
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| article pdf uploaded. | 11 October 2017 11:40 CEST | Updated version of record | https://www.mdpi.com/2304-6740/5/4/67/pdf |
| article pdf uploaded. | 10 October 2017 12:25 CEST | Version of Record | https://www.mdpi.com/2304-6740/5/4/67/pdf-vor |
