| article html file updated | 9 February 2020 04:07 CET | Update | https://www.mdpi.com/2076-3417/8/2/156 |
| article html file updated | 30 September 2019 04:08 CEST | Update | - |
| article html file updated | 2 May 2019 00:01 CEST | Update | - |
| article html file updated | 17 April 2019 22:33 CEST | Update | - |
| article html file updated | 28 March 2019 17:53 CET | Update | - |
| article html file updated | 14 March 2018 09:46 CET | Update | - |
| article html file updated | 24 January 2018 04:07 CET | Original file | - |
| article xml uploaded. | 24 January 2018 04:05 CET | Update | https://www.mdpi.com/2076-3417/8/2/156/xml |
| article xml uploaded. | 24 January 2018 04:05 CET | Original file | - |
| article pdf uploaded. | 24 January 2018 04:05 CET | Version of Record | https://www.mdpi.com/2076-3417/8/2/156/pdf |
