| article html file updated | 7 February 2020 22:44 CET | Update | https://www.mdpi.com/2073-4433/8/2/30 |
| article html file updated | 23 September 2019 04:17 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:35 CEST | Update | N/A |
| article html file updated | 28 February 2017 11:03 CET | Update | N/A |
| article html file updated | 6 February 2017 14:34 CET | Original file | N/A |
| article xml uploaded. | 6 February 2017 14:33 CET | Original file | https://www.mdpi.com/2073-4433/8/2/30/xml |
| article pdf uploaded. | 6 February 2017 14:33 CET | Version of Record | https://www.mdpi.com/2073-4433/8/2/30/pdf |
