| article html file updated | 9 February 2020 21:19 CET | Update | https://www.mdpi.com/2411-5134/3/2/37 |
| article html file updated | 4 October 2019 13:23 CEST | Update | N/A |
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| article html file updated | 13 June 2018 10:38 CEST | Original file | N/A |
| article pdf uploaded. | 13 June 2018 10:37 CEST | Version of Record | https://www.mdpi.com/2411-5134/3/2/37/pdf |
| article xml uploaded. | 13 June 2018 10:37 CEST | Update | https://www.mdpi.com/2411-5134/3/2/37/xml |
| article xml file uploaded | 13 June 2018 10:37 CEST | Original file | N/A |