| article html file updated | 8 February 2020 05:35 CET | Update | https://www.mdpi.com/2076-328X/7/2/31 |
| article html file updated | 3 May 2019 22:34 CEST | Update | - |
| article html file updated | 28 June 2017 12:33 CEST | Update | - |
| article html file updated | 23 May 2017 04:02 CEST | Update | - |
| article html file updated | 11 May 2017 16:36 CEST | Original file | - |
| article xml uploaded. | 11 May 2017 16:35 CEST | Original file | https://www.mdpi.com/2076-328X/7/2/31/xml |
| article pdf uploaded. | 11 May 2017 16:35 CEST | Version of Record | https://www.mdpi.com/2076-328X/7/2/31/pdf |
