| article html file updated | 9 February 2020 03:18 CET | Update | https://www.mdpi.com/1422-0067/19/1/270 |
| article html file updated | 29 September 2019 23:30 CEST | Update | - |
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| article xml uploaded. | 16 January 2018 16:22 CET | Original file | https://www.mdpi.com/1422-0067/19/1/270/xml |
| article pdf uploaded. | 16 January 2018 16:22 CET | Version of Record | https://www.mdpi.com/1422-0067/19/1/270/pdf |
