| article html file updated | 30 August 2025 03:06 CEST | Update | https://www.mdpi.com/1996-1073/11/4/693 |
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| article xml uploaded. | 29 March 2018 05:40 CEST | Update | https://www.mdpi.com/1996-1073/11/4/693/xml |
| article pdf uploaded. | 29 March 2018 05:40 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/4/693/pdf |
| article html file updated | 21 March 2018 03:36 CET | Original file | N/A |
| article pdf uploaded. | 21 March 2018 03:35 CET | Version of Record | https://www.mdpi.com/1996-1073/11/4/693/pdf-vor |
