| article html file updated | 9 February 2020 10:51 CET | Update | https://www.mdpi.com/2075-5309/8/4/47 |
| article html file updated | 1 October 2019 21:04 CEST | Update | - |
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| article html file updated | 1 May 2018 10:07 CEST | Update | - |
| article html file updated | 22 March 2018 16:08 CET | Original file | - |
| article xml uploaded. | 22 March 2018 16:07 CET | Update | https://www.mdpi.com/2075-5309/8/4/47/xml |
| article pdf uploaded. | 22 March 2018 16:07 CET | Version of Record | https://www.mdpi.com/2075-5309/8/4/47/pdf |
