| article html file updated | 8 February 2020 03:36 CET | Update | https://www.mdpi.com/2076-328X/7/2/20 |
| article html file updated | 24 September 2019 07:46 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:12 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:32 CEST | Update | N/A |
| article html file updated | 14 April 2017 13:02 CEST | Original file | N/A |
| article xml uploaded. | 14 April 2017 13:01 CEST | Original file | https://www.mdpi.com/2076-328X/7/2/20/xml |
| article pdf uploaded. | 14 April 2017 13:01 CEST | Version of Record | https://www.mdpi.com/2076-328X/7/2/20/pdf |
