| article html file updated | 6 February 2020 10:03 CET | Update | https://www.mdpi.com/1996-1944/7/6/4628 |
| article html file updated | 20 September 2019 09:25 CEST | Update | - |
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| article html file updated | 18 July 2014 04:28 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 04:28 CEST | Original file | https://www.mdpi.com/1996-1944/7/6/4628/xml |
| article pdf uploaded. | 18 June 2014 14:03 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/6/4628/pdf |
