| article html file updated | 14 August 2026 14:40 CEST | Update | https://www.mdpi.com/2071-1050/9/6/880 |
| article html file updated | 8 February 2020 06:31 CET | Update | N/A |
| article html file updated | 24 September 2019 23:23 CEST | Update | N/A |
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| article xml uploaded. | 2 June 2017 11:57 CEST | Update | https://www.mdpi.com/2071-1050/9/6/880/xml |
| article pdf uploaded. | 2 June 2017 11:57 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/880/pdf |
| article html file updated | 24 May 2017 07:43 CEST | Update | N/A |
| article pdf uploaded. | 24 May 2017 07:42 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/880/pdf-vor |
| article html file updated | 23 May 2017 14:40 CEST | Original file | N/A |
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