| article html file updated | 9 February 2020 01:37 CET | Update | https://www.mdpi.com/2076-3417/8/1/41 |
| article html file updated | 29 September 2019 14:08 CEST | Update | N/A |
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| article html file updated | 31 December 2017 10:18 CET | Original file | N/A |
| article xml uploaded. | 31 December 2017 10:17 CET | Original file | https://www.mdpi.com/2076-3417/8/1/41/xml |
| article pdf uploaded. | 31 December 2017 10:17 CET | Version of Record | https://www.mdpi.com/2076-3417/8/1/41/pdf |
