| article html file updated | 30 August 2025 01:25 CEST | Update | https://www.mdpi.com/2227-9032/5/4/74 |
| article html file updated | 16 July 2022 06:48 CEST | Update | N/A |
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| article xml uploaded. | 16 October 2017 08:36 CEST | Original file | https://www.mdpi.com/2227-9032/5/4/74/xml |
| article pdf uploaded. | 16 October 2017 08:36 CEST | Updated version of record | https://www.mdpi.com/2227-9032/5/4/74/pdf |
| article pdf uploaded. | 14 October 2017 12:15 CEST | Version of Record | https://www.mdpi.com/2227-9032/5/4/74/pdf-vor |
