| article html file updated | 9 February 2020 06:18 CET | Update | https://www.mdpi.com/2075-4701/8/2/127 |
| article html file updated | 1 May 2019 19:10 CEST | Update | - |
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| article html file updated | 28 March 2019 22:37 CET | Update | - |
| article html file updated | 11 February 2018 10:27 CET | Original file | - |
| article xml uploaded. | 11 February 2018 10:26 CET | Original file | https://www.mdpi.com/2075-4701/8/2/127/xml |
| article pdf uploaded. | 11 February 2018 10:26 CET | Version of Record | https://www.mdpi.com/2075-4701/8/2/127/pdf |
