| article html file updated | 8 February 2020 06:02 CET | Update | https://www.mdpi.com/2076-3417/7/5/521 |
| article html file updated | 24 September 2019 20:48 CEST | Update | N/A |
| article html file updated | 3 May 2019 21:43 CEST | Update | N/A |
| article html file updated | 31 May 2017 09:53 CEST | Update | N/A |
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| article html file updated | 17 May 2017 15:34 CEST | Original file | N/A |
| article xml uploaded. | 17 May 2017 15:33 CEST | Original file | https://www.mdpi.com/2076-3417/7/5/521/xml |
| article pdf uploaded. | 17 May 2017 15:33 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/5/521/pdf |
