| article html file updated | 7 February 2020 23:31 CET | Update | https://www.mdpi.com/2075-5309/7/1/13 |
| article html file updated | 23 September 2019 08:36 CEST | Update | - |
| article html file updated | 4 May 2019 11:01 CEST | Update | - |
| article html file updated | 29 March 2017 09:38 CEST | Update | - |
| article html file updated | 16 February 2017 07:33 CET | Original file | - |
| article xml uploaded. | 16 February 2017 07:32 CET | Update | https://www.mdpi.com/2075-5309/7/1/13/xml |
| article xml uploaded. | 16 February 2017 07:32 CET | Original file | - |
| article pdf uploaded. | 16 February 2017 07:32 CET | Version of Record | https://www.mdpi.com/2075-5309/7/1/13/pdf |
