| article html file updated | 9 February 2020 17:32 CET | Update | https://www.mdpi.com/2075-1680/7/2/32 |
| article html file updated | 3 October 2019 13:53 CEST | Update | - |
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| article pdf uploaded. | 14 May 2018 17:08 CEST | Updated version of record | https://www.mdpi.com/2075-1680/7/2/32/pdf |
| article html file updated | 14 May 2018 17:07 CEST | Original file | - |
| article xml uploaded. | 14 May 2018 17:06 CEST | Original file | https://www.mdpi.com/2075-1680/7/2/32/xml |
