| article html file updated | 6 February 2020 21:14 CET | Update | https://www.mdpi.com/2079-4983/6/3/634 |
| article html file updated | 21 September 2019 01:02 CEST | Update | - |
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| article html file updated | 11 December 2018 09:35 CET | Update | - |
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| article html file updated | 9 October 2015 11:46 CEST | Update | - |
| article xml file uploaded | 9 October 2015 11:46 CEST | Original file | https://www.mdpi.com/2079-4983/6/3/634/xml |
| article html file updated | 21 August 2015 15:19 CEST | Original file | - |
| article pdf uploaded. | 30 July 2015 16:32 CEST | Version of Record | https://www.mdpi.com/2079-4983/6/3/634/pdf |
