| article html file updated | 7 February 2020 22:57 CET | Update | https://www.mdpi.com/2076-3417/7/2/156 |
| article html file updated | 23 September 2019 05:31 CEST | Update | - |
| article html file updated | 4 May 2019 12:08 CEST | Update | - |
| article html file updated | 1 March 2017 04:32 CET | Update | - |
| article html file updated | 10 February 2017 11:15 CET | Update | - |
| article xml uploaded. | 10 February 2017 11:14 CET | Update | https://www.mdpi.com/2076-3417/7/2/156/xml |
| article pdf uploaded. | 10 February 2017 11:14 CET | Updated version of record | https://www.mdpi.com/2076-3417/7/2/156/pdf |
| article html file updated | 9 February 2017 09:34 CET | Original file | - |
| article xml uploaded. | 9 February 2017 09:32 CET | Original file | - |
| article pdf uploaded. | 9 February 2017 09:32 CET | Version of Record | https://www.mdpi.com/2076-3417/7/2/156/pdf-vor |
