| article html file updated | 8 February 2020 14:06 CET | Update | https://www.mdpi.com/2306-5338/4/3/42 |
| article html file updated | 26 September 2019 16:12 CEST | Update | - |
| article html file updated | 3 May 2019 05:52 CEST | Update | - |
| article html file updated | 21 August 2017 14:46 CEST | Original file | - |
| article xml uploaded. | 21 August 2017 14:44 CEST | Update | https://www.mdpi.com/2306-5338/4/3/42/xml |
| article xml uploaded. | 21 August 2017 14:44 CEST | Original file | - |
| article pdf uploaded. | 21 August 2017 14:44 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/3/42/pdf |
