| article html file updated | 12 August 2026 19:23 CEST | Update | https://www.mdpi.com/2071-1050/5/6/2480 |
| article html file updated | 6 February 2020 02:31 CET | Update | N/A |
| article html file updated | 8 May 2019 04:17 CEST | Update | N/A |
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| article html file updated | 17 June 2015 10:03 CEST | Original file | N/A |
| article pdf uploaded. | 7 June 2013 14:48 CEST | Updated version of record | https://www.mdpi.com/2071-1050/5/6/2480/pdf |
| article pdf uploaded. | 6 June 2013 13:49 CEST | Version of Record | https://www.mdpi.com/2071-1050/5/6/2480/pdf-vor |
