| article html file updated | 11 February 2020 17:55 CET | Update | https://www.mdpi.com/2227-9091/7/1/21 |
| article html file updated | 15 October 2019 11:25 CEST | Update | - |
| article html file updated | 26 April 2019 12:47 CEST | Update | - |
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| article html file updated | 1 March 2019 09:50 CET | Update | - |
| article html file updated | 22 February 2019 10:16 CET | Original file | - |
| article pdf uploaded. | 22 February 2019 10:14 CET | Version of Record | https://www.mdpi.com/2227-9091/7/1/21/pdf |
| article xml uploaded. | 22 February 2019 10:14 CET | Update | https://www.mdpi.com/2227-9091/7/1/21/xml |
| article xml file uploaded | 22 February 2019 10:14 CET | Original file | - |
