| article html file updated | 9 February 2020 09:30 CET | Update | https://www.mdpi.com/2076-3425/8/3/42 |
| article html file updated | 1 October 2019 13:04 CEST | Update | - |
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| article html file updated | 12 March 2018 10:07 CET | Original file | - |
| article xml uploaded. | 12 March 2018 10:06 CET | Update | https://www.mdpi.com/2076-3425/8/3/42/xml |
| article pdf uploaded. | 12 March 2018 10:06 CET | Version of Record | https://www.mdpi.com/2076-3425/8/3/42/pdf |
