| article html file updated | 8 February 2020 08:45 CET | Update | https://www.mdpi.com/2306-7381/4/2/32 |
| article html file updated | 3 May 2019 16:35 CEST | Update | N/A |
| article html file updated | 20 June 2017 14:01 CEST | Original file | N/A |
| article xml uploaded. | 20 June 2017 14:00 CEST | Original file | https://www.mdpi.com/2306-7381/4/2/32/xml |
| article pdf uploaded. | 20 June 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2306-7381/4/2/32/pdf |
