| article html file updated | 8 February 2020 07:01 CET | Update | https://www.mdpi.com/2225-1146/5/2/22 |
| article html file updated | 3 May 2019 19:51 CEST | Update | - |
| article html file updated | 14 March 2018 10:07 CET | Update | - |
| article html file updated | 30 May 2017 11:48 CEST | Original file | - |
| article xml uploaded. | 30 May 2017 11:47 CEST | Original file | https://www.mdpi.com/2225-1146/5/2/22/xml |
| article pdf uploaded. | 30 May 2017 11:47 CEST | Version of Record | https://www.mdpi.com/2225-1146/5/2/22/pdf |
