| article html file updated | 10 February 2020 23:41 CET | Update | https://www.mdpi.com/2076-393X/6/4/80 |
| article html file updated | 11 October 2019 01:51 CEST | Update | - |
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| article html file updated | 26 December 2018 23:26 CET | Update | - |
| article html file updated | 27 November 2018 14:40 CET | Original file | - |
| article xml uploaded. | 27 November 2018 14:39 CET | Original file | https://www.mdpi.com/2076-393X/6/4/80/xml |
| article pdf uploaded. | 27 November 2018 14:39 CET | Version of Record | https://www.mdpi.com/2076-393X/6/4/80/pdf |
