| article html file updated | 9 February 2020 15:06 CET | Update | https://www.mdpi.com/2076-0787/7/2/42 |
| article html file updated | 1 May 2019 01:00 CEST | Update | - |
| article html file updated | 17 April 2019 01:37 CEST | Update | - |
| article html file updated | 29 March 2019 18:41 CET | Update | - |
| article html file updated | 25 April 2018 04:00 CEST | Update | - |
| article xml uploaded. | 25 April 2018 03:59 CEST | Update | https://www.mdpi.com/2076-0787/7/2/42/xml |
| article pdf uploaded. | 25 April 2018 03:59 CEST | Updated version of record | https://www.mdpi.com/2076-0787/7/2/42/pdf |
| article html file updated | 24 April 2018 12:15 CEST | Original file | - |
| article pdf uploaded. | 24 April 2018 12:14 CEST | Version of Record | https://www.mdpi.com/2076-0787/7/2/42/pdf-vor |
| article xml file uploaded | 24 April 2018 12:14 CEST | Original file | - |
