| article html file updated | 9 February 2020 01:46 CET | Update | https://www.mdpi.com/1660-4601/15/1/57 |
| article html file updated | 29 September 2019 14:56 CEST | Update | - |
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| article pdf uploaded. | 23 January 2018 06:59 CET | Updated version of record | https://www.mdpi.com/1660-4601/15/1/57/pdf |
| article html file updated | 2 January 2018 21:00 CET | Original file | - |
| article xml uploaded. | 2 January 2018 14:50 CET | Original file | https://www.mdpi.com/1660-4601/15/1/57/xml |
