| article html file updated | 7 February 2020 09:34 CET | Update | https://www.mdpi.com/1420-3049/21/6/714 |
| article html file updated | 21 September 2019 18:14 CEST | Update | - |
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| article xml uploaded. | 1 June 2016 08:37 CEST | Update | https://www.mdpi.com/1420-3049/21/6/714/xml |
| article pdf uploaded. | 1 June 2016 08:37 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/714/pdf |