| article html file updated | 14 August 2026 19:50 CEST | Update | https://www.mdpi.com/2071-1050/9/12/2251 |
| article html file updated | 8 February 2020 23:11 CET | Update | N/A |
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| article xml uploaded. | 6 December 2017 06:35 CET | Original file | https://www.mdpi.com/2071-1050/9/12/2251/xml |
| article pdf uploaded. | 6 December 2017 06:35 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2251/pdf |
| article pdf uploaded. | 5 December 2017 11:58 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2251/pdf-vor |
