| article html file updated | 8 February 2020 08:26 CET | Update | https://www.mdpi.com/1422-0067/18/6/1280 |
| article html file updated | 25 September 2019 09:15 CEST | Update | - |
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| article html file updated | 28 June 2017 13:39 CEST | Update | - |
| article html file updated | 16 June 2017 10:33 CEST | Original file | - |
| article xml uploaded. | 16 June 2017 10:32 CEST | Update | https://www.mdpi.com/1422-0067/18/6/1280/xml |
| article pdf uploaded. | 16 June 2017 10:32 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/6/1280/pdf |
