| article html file updated | 7 February 2020 06:52 CET | Update | https://www.mdpi.com/2076-3417/6/4/98 |
| article html file updated | 5 May 2019 19:30 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:07 CET | Update | N/A |
| article html file updated | 27 April 2016 11:18 CEST | Update | N/A |
| article html file updated | 6 April 2016 11:23 CEST | Original file | N/A |
| article xml uploaded. | 6 April 2016 11:22 CEST | Original file | https://www.mdpi.com/2076-3417/6/4/98/xml |
| article pdf uploaded. | 6 April 2016 11:22 CEST | Version of Record | https://www.mdpi.com/2076-3417/6/4/98/pdf |
