| article html file updated | 7 February 2020 06:50 CET | Update | https://www.mdpi.com/2073-4360/8/4/99 |
| article html file updated | 21 September 2019 14:30 CEST | Update | - |
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| article html file updated | 29 April 2016 09:40 CEST | Update | - |
| article html file updated | 5 April 2016 11:55 CEST | Original file | - |
| article xml uploaded. | 5 April 2016 11:54 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/99/xml |
| article pdf uploaded. | 5 April 2016 11:54 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/99/pdf |
