| article html file updated | 9 February 2020 01:36 CET | Update | https://www.mdpi.com/2075-4701/8/1/18 |
| article html file updated | 29 September 2019 14:01 CEST | Update | - |
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| article html file updated | 9 February 2018 10:55 CET | Update | - |
| article html file updated | 1 February 2018 09:55 CET | Update | - |
| article html file updated | 30 December 2017 14:05 CET | Original file | - |
| article xml uploaded. | 30 December 2017 14:04 CET | Update | https://www.mdpi.com/2075-4701/8/1/18/xml |
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| article xml uploaded. | 30 December 2017 14:04 CET | Original file | - |
| article pdf uploaded. | 30 December 2017 14:04 CET | Version of Record | https://www.mdpi.com/2075-4701/8/1/18/pdf |
