| article html file updated | 6 February 2020 16:48 CET | Update | https://www.mdpi.com/2072-6651/7/3/971 |
| article html file updated | 20 September 2019 19:05 CEST | Update | - |
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| article html file updated | 21 August 2015 09:03 CEST | Update | - |
| article html file updated | 31 March 2015 12:40 CEST | Original file | - |
| article xml file uploaded | 31 March 2015 12:40 CEST | Original file | https://www.mdpi.com/2072-6651/7/3/971/xml |
| article pdf uploaded. | 19 March 2015 14:10 CET | Version of Record | https://www.mdpi.com/2072-6651/7/3/971/pdf |
