| article html file updated | 30 August 2025 00:19 CEST | Update | https://www.mdpi.com/2073-4344/7/2/45 |
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| article xml uploaded. | 15 February 2017 07:19 CET | Original file | https://www.mdpi.com/2073-4344/7/2/45/xml |
| article pdf uploaded. | 15 February 2017 07:19 CET | Updated version of record | https://www.mdpi.com/2073-4344/7/2/45/pdf |
| article pdf uploaded. | 29 January 2017 09:09 CET | Version of Record | https://www.mdpi.com/2073-4344/7/2/45/pdf-vor |
