| article html file updated | 8 February 2020 08:31 CET | Update | https://www.mdpi.com/2076-0787/6/2/42 |
| article html file updated | 3 May 2019 17:02 CEST | Update | N/A |
| article html file updated | 20 June 2017 10:12 CEST | Update | N/A |
| article xml uploaded. | 20 June 2017 10:11 CEST | Update | https://www.mdpi.com/2076-0787/6/2/42/xml |
| article pdf uploaded. | 20 June 2017 10:11 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/2/42/pdf |
| article html file updated | 19 June 2017 04:02 CEST | Original file | N/A |
| article pdf uploaded. | 19 June 2017 04:00 CEST | Updated version of record | https://www.mdpi.com/2076-0787/6/2/42/pdf-vor |
| article pdf uploaded. | 16 June 2017 13:47 CEST | Version of Record | https://www.mdpi.com/2076-0787/6/2/42/pdf-vor |
