| article html file updated | 9 February 2020 12:11 CET | Update | https://www.mdpi.com/2073-4352/8/4/154 |
| article html file updated | 2 October 2019 04:53 CEST | Update | - |
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| article html file updated | 2 April 2018 23:32 CEST | Original file | - |
| article xml uploaded. | 2 April 2018 06:35 CEST | Update | https://www.mdpi.com/2073-4352/8/4/154/xml |
| article pdf uploaded. | 2 April 2018 06:35 CEST | Version of Record | https://www.mdpi.com/2073-4352/8/4/154/pdf |