| article html file updated | 9 February 2020 10:16 CET | Update | https://www.mdpi.com/2077-1444/9/3/87 |
| article html file updated | 1 May 2019 10:50 CEST | Update | N/A |
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| article html file updated | 29 March 2019 07:30 CET | Update | N/A |
| article html file updated | 26 March 2018 13:02 CEST | Update | N/A |
| article html file updated | 18 March 2018 09:39 CET | Original file | N/A |
| article xml uploaded. | 18 March 2018 09:38 CET | Original file | https://www.mdpi.com/2077-1444/9/3/87/xml |
| article pdf uploaded. | 18 March 2018 09:38 CET | Version of Record | https://www.mdpi.com/2077-1444/9/3/87/pdf |
