| article html file updated | 9 February 2020 05:25 CET | Update | https://www.mdpi.com/2226-4310/5/1/15 |
| article html file updated | 1 May 2019 21:12 CEST | Update | - |
| article html file updated | 17 April 2019 20:07 CEST | Update | - |
| article html file updated | 28 March 2019 20:42 CET | Update | - |
| article html file updated | 26 March 2018 15:59 CEST | Update | - |
| article html file updated | 3 February 2018 11:37 CET | Original file | - |
| article xml uploaded. | 3 February 2018 11:35 CET | Update | https://www.mdpi.com/2226-4310/5/1/15/xml |
| article xml uploaded. | 3 February 2018 11:35 CET | Update | - |
| article xml uploaded. | 3 February 2018 11:35 CET | Original file | - |
| article pdf uploaded. | 3 February 2018 11:35 CET | Version of Record | https://www.mdpi.com/2226-4310/5/1/15/pdf |
