| article html file updated | 30 August 2025 03:16 CEST | Update | https://www.mdpi.com/1996-1073/11/4/804 |
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| article xml uploaded. | 2 April 2018 05:07 CEST | Update | https://www.mdpi.com/1996-1073/11/4/804/xml |
| article pdf uploaded. | 2 April 2018 05:07 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/804/pdf |
| article pdf uploaded. | 30 March 2018 17:57 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/804/pdf-vor |
