| article html file updated | 8 February 2020 03:36 CET | Update | https://www.mdpi.com/2306-5338/4/2/24 |
| article html file updated | 24 September 2019 07:47 CEST | Update | - |
| article html file updated | 4 May 2019 02:11 CEST | Update | - |
| article html file updated | 19 April 2017 08:43 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 08:42 CEST | Original file | https://www.mdpi.com/2306-5338/4/2/24/xml |
| article pdf uploaded. | 19 April 2017 08:42 CEST | Updated version of record | https://www.mdpi.com/2306-5338/4/2/24/pdf |
| article pdf uploaded. | 14 April 2017 12:35 CEST | Version of Record | https://www.mdpi.com/2306-5338/4/2/24/pdf-vor |
