| article html file updated | 7 February 2020 15:37 CET | Update | https://www.mdpi.com/2076-3425/6/4/42 |
| article html file updated | 22 September 2019 01:45 CEST | Update | - |
| article html file updated | 5 May 2019 02:57 CEST | Update | - |
| article html file updated | 10 May 2017 11:36 CEST | Update | - |
| article xml uploaded. | 10 May 2017 11:34 CEST | Update | https://www.mdpi.com/2076-3425/6/4/42/xml |
| article pdf uploaded. | 10 May 2017 11:34 CEST | Updated version of record | https://www.mdpi.com/2076-3425/6/4/42/pdf |
| article html file updated | 27 December 2016 02:16 CET | Update | - |
| article html file updated | 28 September 2016 23:04 CEST | Update | - |
| article xml uploaded. | 28 September 2016 09:41 CEST | Update | - |
| article xml uploaded. | 28 September 2016 09:41 CEST | Update | - |
| article pdf uploaded. | 28 September 2016 09:41 CEST | Updated version of record | https://www.mdpi.com/2076-3425/6/4/42/pdf-vor |
| article html file updated | 27 September 2016 13:01 CEST | Original file | - |
| article xml uploaded. | 27 September 2016 13:00 CEST | Update | - |
| article xml uploaded. | 27 September 2016 13:00 CEST | Original file | - |
| article pdf uploaded. | 27 September 2016 13:00 CEST | Version of Record | https://www.mdpi.com/2076-3425/6/4/42/pdf-vor |
