| article html file updated | 12 August 2026 23:35 CEST | Update | https://www.mdpi.com/2071-1050/6/4/1946 |
| article html file updated | 6 February 2020 08:28 CET | Update | N/A |
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| article pdf uploaded. | 11 April 2014 16:59 CEST | Updated version of record | https://www.mdpi.com/2071-1050/6/4/1946/pdf |
| article pdf uploaded. | 9 April 2014 11:31 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/4/1946/pdf-vor |
