| article html file updated | 9 February 2020 05:47 CET | Update | https://www.mdpi.com/1422-0067/19/2/494 |
| article html file updated | 30 September 2019 14:19 CEST | Update | - |
| article html file updated | 1 May 2019 20:22 CEST | Update | - |
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| article html file updated | 14 March 2018 18:50 CET | Update | - |
| article html file updated | 7 February 2018 08:13 CET | Original file | - |
| article xml uploaded. | 7 February 2018 08:12 CET | Original file | https://www.mdpi.com/1422-0067/19/2/494/xml |
| article pdf uploaded. | 7 February 2018 08:12 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/494/pdf |
