| article html file updated | 13 September 2021 11:53 CEST | Update | https://www.mdpi.com/2073-445X/7/1/20 |
| article html file updated | 9 February 2020 05:08 CET | Update | - |
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| article xml uploaded. | 1 February 2018 11:28 CET | Update | https://www.mdpi.com/2073-445X/7/1/20/xml |
| article pdf uploaded. | 1 February 2018 11:28 CET | Updated version of record | https://www.mdpi.com/2073-445X/7/1/20/pdf |
| article html file updated | 1 February 2018 08:50 CET | Original file | - |
| article xml uploaded. | 1 February 2018 08:10 CET | Original file | - |
| article pdf uploaded. | 1 February 2018 08:10 CET | Version of Record | https://www.mdpi.com/2073-445X/7/1/20/pdf-vor |
