| article html file updated | 9 February 2020 03:08 CET | Update | https://www.mdpi.com/2075-1680/7/1/3 |
| article html file updated | 29 September 2019 22:26 CEST | Update | - |
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| article html file updated | 26 March 2018 15:30 CEST | Update | - |
| article html file updated | 15 January 2018 15:29 CET | Original file | - |
| article xml uploaded. | 15 January 2018 15:28 CET | Original file | https://www.mdpi.com/2075-1680/7/1/3/xml |
| article pdf uploaded. | 15 January 2018 15:28 CET | Version of Record | https://www.mdpi.com/2075-1680/7/1/3/pdf |
