| article html file updated | 9 February 2020 10:27 CET | Update | https://www.mdpi.com/2075-4442/6/1/29 |
| article html file updated | 1 October 2019 18:45 CEST | Update | - |
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| article html file updated | 27 March 2018 15:23 CEST | Update | - |
| article html file updated | 20 March 2018 07:27 CET | Original file | - |
| article xml uploaded. | 20 March 2018 07:26 CET | Original file | https://www.mdpi.com/2075-4442/6/1/29/xml |
| article pdf uploaded. | 20 March 2018 07:26 CET | Version of Record | https://www.mdpi.com/2075-4442/6/1/29/pdf |
