| article html file updated | 12 February 2020 05:18 CET | Update | https://www.mdpi.com/2218-1997/5/4/91 |
| article html file updated | 8 May 2019 18:35 CEST | Update | - |
| article html file updated | 25 April 2019 11:52 CEST | Update | - |
| article html file updated | 18 April 2019 19:20 CEST | Original file | - |
| article pdf uploaded. | 18 April 2019 12:48 CEST | Updated version of record | https://www.mdpi.com/2218-1997/5/4/91/pdf |
| article xml uploaded. | 18 April 2019 12:48 CEST | Update | https://www.mdpi.com/2218-1997/5/4/91/xml |
| article xml file uploaded | 18 April 2019 12:47 CEST | Update | - |
| article pdf uploaded. | 14 April 2019 13:17 CEST | Version of Record | https://www.mdpi.com/2218-1997/5/4/91/pdf-vor |
| article xml file uploaded | 14 April 2019 13:17 CEST | Original file | - |
