| article html file updated | 9 February 2020 06:22 CET | Update | https://www.mdpi.com/2076-3417/8/2/270 |
| article html file updated | 30 September 2019 17:47 CEST | Update | - |
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| article html file updated | 14 March 2018 11:34 CET | Update | - |
| article html file updated | 12 February 2018 03:38 CET | Original file | - |
| article xml uploaded. | 12 February 2018 03:37 CET | Original file | https://www.mdpi.com/2076-3417/8/2/270/xml |
| article pdf uploaded. | 12 February 2018 03:37 CET | Version of Record | https://www.mdpi.com/2076-3417/8/2/270/pdf |
