| article html file updated | 8 February 2020 15:42 CET | Update | https://www.mdpi.com/2226-4787/5/3/52 |
| article html file updated | 27 September 2019 00:50 CEST | Update | N/A |
| article html file updated | 3 May 2019 02:52 CEST | Update | N/A |
| article html file updated | 30 September 2017 15:42 CEST | Update | N/A |
| article html file updated | 8 September 2017 14:55 CEST | Original file | N/A |
| article xml uploaded. | 8 September 2017 14:54 CEST | Original file | https://www.mdpi.com/2226-4787/5/3/52/xml |
| article pdf uploaded. | 8 September 2017 14:54 CEST | Version of Record | https://www.mdpi.com/2226-4787/5/3/52/pdf |
