| article html file updated | 30 August 2025 03:12 CEST | Update | https://www.mdpi.com/1999-4893/11/4/39 |
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| article xml uploaded. | 3 April 2018 08:30 CEST | Update | https://www.mdpi.com/1999-4893/11/4/39/xml |
| article pdf uploaded. | 3 April 2018 08:30 CEST | Updated version of record | https://www.mdpi.com/1999-4893/11/4/39/pdf |
| article html file updated | 27 March 2018 17:11 CEST | Original file | N/A |
| article pdf uploaded. | 27 March 2018 17:01 CEST | Version of Record | https://www.mdpi.com/1999-4893/11/4/39/pdf-vor |
