| article html file updated | 7 February 2020 14:32 CET | Update | https://www.mdpi.com/2076-3425/6/3/39 |
| article html file updated | 5 May 2019 04:54 CEST | Update | N/A |
| article html file updated | 28 September 2016 11:45 CEST | Update | N/A |
| article html file updated | 7 September 2016 04:19 CEST | Original file | N/A |
| article xml uploaded. | 7 September 2016 04:17 CEST | Update | https://www.mdpi.com/2076-3425/6/3/39/xml |
| article xml uploaded. | 7 September 2016 04:17 CEST | Update | N/A |
| article xml uploaded. | 7 September 2016 04:17 CEST | Original file | N/A |
| article pdf uploaded. | 7 September 2016 04:17 CEST | Version of Record | https://www.mdpi.com/2076-3425/6/3/39/pdf |
