| article html file updated | 8 February 2020 05:00 CET | Update | https://www.mdpi.com/1422-0067/18/5/973 |
| article html file updated | 24 September 2019 15:31 CEST | Update | - |
| article html file updated | 3 May 2019 23:36 CEST | Update | - |
| article html file updated | 1 June 2017 11:11 CEST | Update | - |
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| article html file updated | 4 May 2017 14:27 CEST | Original file | - |
| article xml uploaded. | 4 May 2017 14:26 CEST | Update | https://www.mdpi.com/1422-0067/18/5/973/xml |
| article pdf uploaded. | 4 May 2017 14:26 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/5/973/pdf |
