| article html file updated | 8 February 2020 02:39 CET | Update | https://www.mdpi.com/2073-4441/9/4/242 |
| article html file updated | 24 September 2019 02:30 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:11 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:20 CEST | Update | N/A |
| article html file updated | 31 March 2017 16:11 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 16:10 CEST | Original file | https://www.mdpi.com/2073-4441/9/4/242/xml |
| article pdf uploaded. | 31 March 2017 16:10 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/4/242/pdf |
