| article html file updated | 9 February 2020 06:33 CET | Update | https://www.mdpi.com/2504-446X/2/1/7 |
| article html file updated | 30 September 2019 18:53 CEST | Update | - |
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| article html file updated | 28 March 2019 23:09 CET | Update | - |
| article html file updated | 13 February 2018 15:14 CET | Original file | - |
| article xml uploaded. | 13 February 2018 15:13 CET | Update | https://www.mdpi.com/2504-446X/2/1/7/xml |
| article xml uploaded. | 13 February 2018 15:13 CET | Update | - |
| article xml uploaded. | 13 February 2018 15:13 CET | Original file | - |
| article pdf uploaded. | 13 February 2018 15:05 CET | Version of Record | https://www.mdpi.com/2504-446X/2/1/7/pdf |
