| article html file updated | 7 February 2020 23:44 CET | Update | https://www.mdpi.com/1420-3049/22/2/306 |
| article html file updated | 23 September 2019 09:52 CEST | Update | - |
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| article html file updated | 2 March 2017 04:09 CET | Update | - |
| article html file updated | 18 February 2017 10:42 CET | Original file | - |
| article xml uploaded. | 18 February 2017 10:41 CET | Original file | https://www.mdpi.com/1420-3049/22/2/306/xml |
| article pdf uploaded. | 18 February 2017 10:41 CET | Version of Record | https://www.mdpi.com/1420-3049/22/2/306/pdf |
