| article html file updated | 8 February 2020 14:25 CET | Update | https://www.mdpi.com/2076-0787/6/3/64 |
| article html file updated | 3 May 2019 05:15 CEST | Update | N/A |
| article html file updated | 25 August 2017 04:33 CEST | Update | N/A |
| article xml uploaded. | 25 August 2017 04:32 CEST | Update | https://www.mdpi.com/2076-0787/6/3/64/xml |
| article pdf uploaded. | 25 August 2017 04:32 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/3/64/pdf |
| article html file updated | 24 August 2017 14:01 CEST | Original file | N/A |
| article xml uploaded. | 24 August 2017 14:00 CEST | Original file | N/A |
| article pdf uploaded. | 24 August 2017 14:00 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/3/64/pdf-vor |
