| article html file updated | 7 February 2020 07:30 CET | Update | https://www.mdpi.com/2073-4360/8/4/151 |
| article html file updated | 21 September 2019 15:31 CEST | Update | - |
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| article html file updated | 29 April 2016 10:01 CEST | Update | - |
| article html file updated | 19 April 2016 15:24 CEST | Original file | - |
| article xml uploaded. | 19 April 2016 15:22 CEST | Update | https://www.mdpi.com/2073-4360/8/4/151/xml |
| article pdf uploaded. | 19 April 2016 15:22 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/151/pdf |
