| article html file updated | 7 February 2020 06:07 CET | Update | https://www.mdpi.com/2072-666X/7/3/42 |
| article html file updated | 21 September 2019 13:26 CEST | Update | N/A |
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| article html file updated | 28 March 2016 11:32 CEST | Original file | N/A |
| article xml uploaded. | 18 March 2016 11:59 CET | Original file | https://www.mdpi.com/2072-666X/7/3/42/xml |
| article pdf uploaded. | 18 March 2016 11:59 CET | Version of Record | https://www.mdpi.com/2072-666X/7/3/42/pdf |
