| article html file updated | 8 February 2020 06:33 CET | Update | https://www.mdpi.com/2073-4395/7/2/37 |
| article html file updated | 24 September 2019 23:33 CEST | Update | - |
| article html file updated | 3 May 2019 20:41 CEST | Update | - |
| article html file updated | 28 June 2017 12:22 CEST | Update | - |
| article html file updated | 24 May 2017 11:16 CEST | Original file | - |
| article xml uploaded. | 24 May 2017 11:14 CEST | Update | https://www.mdpi.com/2073-4395/7/2/37/xml |
| article pdf uploaded. | 24 May 2017 11:14 CEST | Version of Record | https://www.mdpi.com/2073-4395/7/2/37/pdf |
