| article html file updated | 9 February 2020 00:06 CET | Update | https://www.mdpi.com/2411-5150/1/4/26 |
| article html file updated | 29 September 2019 05:22 CEST | Update | - |
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| article html file updated | 18 April 2019 06:17 CEST | Update | - |
| article html file updated | 14 December 2017 14:20 CET | Original file | - |
| article xml uploaded. | 14 December 2017 14:19 CET | Original file | https://www.mdpi.com/2411-5150/1/4/26/xml |
| article pdf uploaded. | 14 December 2017 14:19 CET | Version of Record | https://www.mdpi.com/2411-5150/1/4/26/pdf |
