| article html file updated | 7 February 2020 21:08 CET | Update | https://www.mdpi.com/2073-4344/7/1/17 |
| article html file updated | 22 September 2019 19:45 CEST | Update | - |
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| article html file updated | 7 February 2017 04:03 CET | Update | - |
| article html file updated | 10 January 2017 13:16 CET | Original file | - |
| article xml uploaded. | 10 January 2017 13:15 CET | Original file | https://www.mdpi.com/2073-4344/7/1/17/xml |
| article pdf uploaded. | 10 January 2017 13:15 CET | Version of Record | https://www.mdpi.com/2073-4344/7/1/17/pdf |
