| article html file updated | 9 February 2020 09:31 CET | Update | https://www.mdpi.com/1422-0067/19/3/821 |
| article html file updated | 1 October 2019 13:07 CEST | Update | - |
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| article html file updated | 28 March 2018 10:54 CEST | Update | - |
| article html file updated | 12 March 2018 10:30 CET | Original file | - |
| article xml uploaded. | 12 March 2018 10:28 CET | Update | https://www.mdpi.com/1422-0067/19/3/821/xml |
| article pdf uploaded. | 12 March 2018 10:28 CET | Version of Record | https://www.mdpi.com/1422-0067/19/3/821/pdf |
