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| article html file updated | 30 August 2025 00:27 CEST | Update | N/A |
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| article html file updated | 24 February 2017 10:50 CET | Original file | N/A |
| article xml uploaded. | 24 February 2017 10:42 CET | Original file | https://www.mdpi.com/2218-273X/7/1/19/xml |
| article pdf uploaded. | 24 February 2017 10:42 CET | Updated version of record | https://www.mdpi.com/2218-273X/7/1/19/pdf |
| article pdf uploaded. | 21 February 2017 15:16 CET | Version of Record | https://www.mdpi.com/2218-273X/7/1/19/pdf-vor |
