| article html file updated | 9 February 2020 10:03 CET | Update | https://www.mdpi.com/2223-7747/7/1/22 |
| article html file updated | 1 October 2019 16:30 CEST | Update | N/A |
| article html file updated | 1 May 2019 11:17 CEST | Update | N/A |
| article html file updated | 17 April 2019 11:07 CEST | Update | N/A |
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| article html file updated | 27 March 2018 14:58 CEST | Update | N/A |
| article html file updated | 16 March 2018 08:02 CET | Original file | N/A |
| article xml uploaded. | 16 March 2018 08:01 CET | Original file | https://www.mdpi.com/2223-7747/7/1/22/xml |
| article pdf uploaded. | 16 March 2018 08:01 CET | Version of Record | https://www.mdpi.com/2223-7747/7/1/22/pdf |
