| article html file updated | 8 February 2020 08:20 CET | Update | https://www.mdpi.com/2073-445X/6/2/41 |
| article html file updated | 25 September 2019 08:43 CEST | Update | - |
| article html file updated | 3 May 2019 17:22 CEST | Update | - |
| article html file updated | 30 June 2017 09:21 CEST | Update | - |
| article html file updated | 15 June 2017 11:24 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 11:23 CEST | Original file | https://www.mdpi.com/2073-445X/6/2/41/xml |
| article pdf uploaded. | 15 June 2017 11:23 CEST | Updated version of record | https://www.mdpi.com/2073-445X/6/2/41/pdf |
