| article html file updated | 8 February 2020 16:11 CET | Update | https://www.mdpi.com/2227-9091/5/3/50 |
| article html file updated | 27 September 2019 03:30 CEST | Update | N/A |
| article html file updated | 3 May 2019 01:59 CEST | Update | N/A |
| article html file updated | 30 September 2017 15:45 CEST | Update | N/A |
| article html file updated | 14 September 2017 12:40 CEST | Original file | N/A |
| article xml uploaded. | 14 September 2017 12:39 CEST | Original file | https://www.mdpi.com/2227-9091/5/3/50/xml |
| article pdf uploaded. | 14 September 2017 12:39 CEST | Version of Record | https://www.mdpi.com/2227-9091/5/3/50/pdf |
