| article html file updated | 7 February 2020 21:54 CET | Update | https://www.mdpi.com/2073-4352/7/1/32 |
| article html file updated | 22 September 2019 23:48 CEST | Update | - |
| article html file updated | 4 May 2019 14:14 CEST | Update | - |
| article html file updated | 7 February 2017 04:16 CET | Update | - |
| article html file updated | 20 January 2017 14:42 CET | Original file | - |
| article xml uploaded. | 20 January 2017 14:41 CET | Original file | https://www.mdpi.com/2073-4352/7/1/32/xml |
| article pdf uploaded. | 20 January 2017 14:41 CET | Version of Record | https://www.mdpi.com/2073-4352/7/1/32/pdf |
