| article html file updated | 9 February 2020 03:38 CET | Update | https://www.mdpi.com/2075-163X/8/1/30 |
| article html file updated | 2 May 2019 01:04 CEST | Update | N/A |
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| article pdf uploaded. | 19 January 2018 15:27 CET | Updated version of record | https://www.mdpi.com/2075-163X/8/1/30/pdf |
| article html file updated | 19 January 2018 15:12 CET | Original file | N/A |
| article xml uploaded. | 19 January 2018 15:11 CET | Original file | https://www.mdpi.com/2075-163X/8/1/30/xml |
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