| article html file updated | 8 February 2020 03:11 CET | Update | https://www.mdpi.com/2073-4441/9/4/263 |
| article html file updated | 24 September 2019 05:35 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:58 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:25 CEST | Update | N/A |
| article html file updated | 14 April 2017 04:52 CEST | Update | N/A |
| article xml uploaded. | 14 April 2017 04:51 CEST | Update | https://www.mdpi.com/2073-4441/9/4/263/xml |
| article pdf uploaded. | 14 April 2017 04:51 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/4/263/pdf |
| article html file updated | 8 April 2017 13:29 CEST | Original file | N/A |
| article pdf uploaded. | 8 April 2017 13:27 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/263/pdf-vor |
