| article html file updated | 8 February 2020 07:40 CET | Update | https://www.mdpi.com/2306-5338/4/2/32 |
| article html file updated | 25 September 2019 05:17 CEST | Update | - |
| article html file updated | 3 May 2019 18:36 CEST | Update | - |
| article html file updated | 7 June 2017 12:05 CEST | Original file | - |
| article xml uploaded. | 7 June 2017 12:03 CEST | Original file | https://www.mdpi.com/2306-5338/4/2/32/xml |
| article pdf uploaded. | 7 June 2017 12:03 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/2/32/pdf |
