| article html file updated | 9 February 2020 03:27 CET | Update | https://www.mdpi.com/2073-4352/8/1/44 |
| article html file updated | 30 September 2019 00:25 CEST | Update | - |
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| article html file updated | 1 February 2018 10:15 CET | Update | - |
| article html file updated | 18 January 2018 04:39 CET | Original file | - |
| article xml uploaded. | 18 January 2018 04:38 CET | Original file | https://www.mdpi.com/2073-4352/8/1/44/xml |
| article pdf uploaded. | 18 January 2018 04:38 CET | Version of Record | https://www.mdpi.com/2073-4352/8/1/44/pdf |
