| article html file updated | 8 February 2020 00:04 CET | Update | https://www.mdpi.com/2306-5338/4/1/15 |
| article html file updated | 23 September 2019 11:45 CEST | Update | - |
| article html file updated | 4 May 2019 09:53 CEST | Update | - |
| article html file updated | 23 February 2017 09:51 CET | Original file | - |
| article xml uploaded. | 23 February 2017 09:50 CET | Original file | https://www.mdpi.com/2306-5338/4/1/15/xml |
| article pdf uploaded. | 23 February 2017 09:50 CET | Version of Record | https://www.mdpi.com/2306-5338/4/1/15/pdf |
