| article html file updated | 9 February 2020 06:17 CET | Update | https://www.mdpi.com/1422-0067/19/2/544 |
| article html file updated | 1 May 2019 19:12 CEST | Update | N/A |
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| article html file updated | 28 March 2019 22:36 CET | Update | N/A |
| article html file updated | 14 March 2018 19:12 CET | Update | N/A |
| article html file updated | 11 February 2018 09:39 CET | Original file | N/A |
| article xml uploaded. | 11 February 2018 09:37 CET | Original file | https://www.mdpi.com/1422-0067/19/2/544/xml |
| article pdf uploaded. | 11 February 2018 09:37 CET | Version of Record | https://www.mdpi.com/1422-0067/19/2/544/pdf |
