| article html file updated | 9 February 2020 01:02 CET | Update | https://new.mdpi.com/1422-0067/19/1/45 |
| article html file updated | 29 September 2019 10:50 CEST | Update | - |
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| article html file updated | 2 February 2018 09:28 CET | Update | - |
| article html file updated | 24 December 2017 14:14 CET | Original file | - |
| article xml uploaded. | 24 December 2017 14:12 CET | Update | https://new.mdpi.com/1422-0067/19/1/45/xml |
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| article pdf uploaded. | 24 December 2017 14:12 CET | Updated version of record | https://new.mdpi.com/1422-0067/19/1/45/pdf |
| article pdf uploaded. | 23 December 2017 11:43 CET | Version of Record | https://new.mdpi.com/1422-0067/19/1/45/pdf-vor |
