| article html file updated | 13 August 2026 04:25 CEST | Update | https://www.mdpi.com/2077-0383/3/3/1050 |
| article html file updated | 6 February 2020 12:23 CET | Update | N/A |
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| article html file updated | 10 December 2014 09:53 CET | Update | N/A |
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| article html file updated | 19 October 2014 15:58 CEST | Original file | N/A |
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| article pdf uploaded. | 25 September 2014 15:42 CEST | Updated version of record | https://www.mdpi.com/2077-0383/3/3/1050/pdf |
| article pdf uploaded. | 22 September 2014 14:05 CEST | Version of Record | https://www.mdpi.com/2077-0383/3/3/1050/pdf-vor |
