| article html file updated | 7 February 2020 21:24 CET | Update | https://www.mdpi.com/2073-4352/7/1/24 |
| article html file updated | 22 September 2019 20:59 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:27 CEST | Update | N/A |
| article html file updated | 7 February 2017 04:12 CET | Update | N/A |
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| article xml uploaded. | 13 January 2017 10:03 CET | Update | https://www.mdpi.com/2073-4352/7/1/24/xml |
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| article pdf uploaded. | 13 January 2017 10:02 CET | Version of Record | https://www.mdpi.com/2073-4352/7/1/24/pdf |
