| article html file updated | 8 February 2020 05:40 CET | Update | https://www.mdpi.com/2411-9660/1/1/2 |
| article html file updated | 24 September 2019 18:57 CEST | Update | N/A |
| article html file updated | 3 May 2019 22:23 CEST | Update | N/A |
| article html file updated | 23 May 2017 04:06 CEST | Update | N/A |
| article html file updated | 16 May 2017 04:07 CEST | Original file | N/A |
| article xml uploaded. | 16 May 2017 04:06 CEST | Original file | https://www.mdpi.com/2411-9660/1/1/2/xml |
| article pdf uploaded. | 16 May 2017 04:06 CEST | Updated version of record | https://www.mdpi.com/2411-9660/1/1/2/pdf |
| article pdf uploaded. | 12 May 2017 16:34 CEST | Version of Record | https://www.mdpi.com/2411-9660/1/1/2/pdf-vor |
