| article html file updated | 9 February 2020 03:34 CET | Update | https://www.mdpi.com/2504-5377/2/1/3 |
| article html file updated | 30 September 2019 01:05 CEST | Update | - |
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| article html file updated | 17 October 2018 11:36 CEST | Update | - |
| article html file updated | 18 January 2018 16:18 CET | Original file | - |
| article xml uploaded. | 18 January 2018 16:17 CET | Update | https://www.mdpi.com/2504-5377/2/1/3/xml |
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| article pdf uploaded. | 18 January 2018 16:17 CET | Version of Record | https://www.mdpi.com/2504-5377/2/1/3/pdf |
