| article html file updated | 9 February 2020 03:57 CET | Update | https://www.mdpi.com/2075-4442/6/1/12 |
| article html file updated | 2 May 2019 00:22 CEST | Update | - |
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| article html file updated | 27 March 2018 15:17 CEST | Update | - |
| article html file updated | 23 January 2018 08:15 CET | Update | - |
| article xml uploaded. | 23 January 2018 08:13 CET | Update | https://www.mdpi.com/2075-4442/6/1/12/xml |
| article html file updated | 23 January 2018 04:59 CET | Original file | - |
| article xml uploaded. | 23 January 2018 04:58 CET | Update | - |
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| article pdf uploaded. | 23 January 2018 04:58 CET | Version of Record | https://www.mdpi.com/2075-4442/6/1/12/pdf |
