| article html file updated | 11 September 2021 09:35 CEST | Update | https://www.mdpi.com/2220-9964/7/6/206 |
| article html file updated | 9 February 2020 19:32 CET | Update | - |
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| article xml uploaded. | 31 May 2018 09:07 CEST | Update | https://www.mdpi.com/2220-9964/7/6/206/xml |
| article pdf uploaded. | 31 May 2018 09:04 CEST | Updated version of record | https://www.mdpi.com/2220-9964/7/6/206/pdf |
| article html file updated | 30 May 2018 09:47 CEST | Original file | - |
| article pdf uploaded. | 30 May 2018 09:45 CEST | Version of Record | https://www.mdpi.com/2220-9964/7/6/206/pdf-vor |
| article xml file uploaded | 30 May 2018 09:45 CEST | Original file | - |
