| article html file updated | 9 February 2020 08:28 CET | Update | https://www.mdpi.com/2504-477X/2/1/13 |
| article html file updated | 1 October 2019 05:52 CEST | Update | N/A |
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| article html file updated | 2 March 2018 16:39 CET | Original file | N/A |
| article xml uploaded. | 2 March 2018 16:38 CET | Update | https://www.mdpi.com/2504-477X/2/1/13/xml |
| article pdf uploaded. | 2 March 2018 16:38 CET | Version of Record | https://www.mdpi.com/2504-477X/2/1/13/pdf |
