| article html file updated | 14 August 2026 17:49 CEST | Update | https://www.mdpi.com/1999-4923/9/4/41 |
| article html file updated | 8 February 2020 17:12 CET | Update | N/A |
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| article html file updated | 27 September 2017 08:18 CEST | Original file | N/A |
| article xml uploaded. | 27 September 2017 08:16 CEST | Original file | https://www.mdpi.com/1999-4923/9/4/41/xml |
| article pdf uploaded. | 27 September 2017 08:16 CEST | Updated version of record | https://www.mdpi.com/1999-4923/9/4/41/pdf |
| article pdf uploaded. | 26 September 2017 15:31 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/4/41/pdf-vor |
