| article html file updated | 7 February 2020 06:41 CET | Update | https://www.mdpi.com/2073-4360/8/4/118 |
| article html file updated | 21 September 2019 14:20 CEST | Update | - |
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| article html file updated | 29 April 2016 09:47 CEST | Update | - |
| article html file updated | 6 April 2016 08:40 CEST | Update | - |
| article xml uploaded. | 6 April 2016 08:39 CEST | Update | https://www.mdpi.com/2073-4360/8/4/118/xml |
| article pdf uploaded. | 6 April 2016 08:39 CEST | Updated version of record | https://www.mdpi.com/2073-4360/8/4/118/pdf |
| article html file updated | 31 March 2016 12:20 CEST | Original file | - |
| article pdf uploaded. | 31 March 2016 12:19 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/118/pdf-vor |