| article html file updated | 8 February 2020 06:58 CET | Update | https://www.mdpi.com/2073-4352/7/6/136 |
| article html file updated | 25 September 2019 01:42 CEST | Update | - |
| article html file updated | 3 May 2019 19:55 CEST | Update | - |
| article html file updated | 30 June 2017 11:22 CEST | Update | - |
| article html file updated | 29 May 2017 11:12 CEST | Original file | - |
| article xml uploaded. | 29 May 2017 11:10 CEST | Original file | https://www.mdpi.com/2073-4352/7/6/136/xml |
| article pdf uploaded. | 29 May 2017 11:10 CEST | Version of Record | https://www.mdpi.com/2073-4352/7/6/136/pdf |
