| article html file updated | 10 February 2020 23:47 CET | Update | https://www.mdpi.com/2411-5142/3/4/60 |
| article html file updated | 11 October 2019 02:28 CEST | Update | N/A |
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| article html file updated | 28 November 2018 07:36 CET | Original file | N/A |
| article pdf uploaded. | 28 November 2018 07:34 CET | Version of Record | https://www.mdpi.com/2411-5142/3/4/60/pdf |
| article xml uploaded. | 28 November 2018 07:34 CET | Update | https://www.mdpi.com/2411-5142/3/4/60/xml |
| article xml file uploaded | 28 November 2018 07:34 CET | Original file | N/A |