| article html file updated | 16 September 2021 06:07 CEST | Update | https://www.mdpi.com/2073-4344/8/4/133 |
| article html file updated | 9 February 2020 11:48 CET | Update | - |
| article html file updated | 1 May 2019 07:32 CEST | Update | - |
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| article html file updated | 29 March 2018 15:18 CEST | Original file | - |
| article xml uploaded. | 29 March 2018 15:16 CEST | Update | https://www.mdpi.com/2073-4344/8/4/133/xml |
| article pdf uploaded. | 29 March 2018 15:16 CEST | Version of Record | https://www.mdpi.com/2073-4344/8/4/133/pdf |
