| article html file updated | 9 February 2020 08:14 CET | Update | https://www.mdpi.com/2504-477X/2/1/12 |
| article html file updated | 1 October 2019 04:31 CEST | Update | - |
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| article xml uploaded. | 1 March 2018 10:04 CET | Update | https://www.mdpi.com/2504-477X/2/1/12/xml |
| article pdf uploaded. | 1 March 2018 10:04 CET | Version of Record | https://www.mdpi.com/2504-477X/2/1/12/pdf |
