| article html file updated | 7 February 2020 21:04 CET | Update | https://www.mdpi.com/2076-3417/7/1/63 |
| article html file updated | 22 September 2019 19:30 CEST | Update | - |
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| article html file updated | 8 February 2017 09:32 CET | Update | - |
| article html file updated | 9 January 2017 13:28 CET | Original file | - |
| article xml uploaded. | 9 January 2017 13:27 CET | Original file | https://www.mdpi.com/2076-3417/7/1/63/xml |
| article pdf uploaded. | 9 January 2017 13:27 CET | Version of Record | https://www.mdpi.com/2076-3417/7/1/63/pdf |
