| article html file updated | 8 February 2020 07:55 CET | Update | https://www.mdpi.com/2076-3417/7/6/601 |
| article html file updated | 25 September 2019 06:33 CEST | Update | N/A |
| article html file updated | 3 May 2019 18:07 CEST | Update | N/A |
| article html file updated | 27 June 2017 09:42 CEST | Update | N/A |
| article html file updated | 13 June 2017 03:22 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2017 03:20 CEST | Original file | https://www.mdpi.com/2076-3417/7/6/601/xml |
| article pdf uploaded. | 13 June 2017 03:20 CEST | Updated version of record | https://www.mdpi.com/2076-3417/7/6/601/pdf |
| article pdf uploaded. | 9 June 2017 14:07 CEST | Version of Record | https://www.mdpi.com/2076-3417/7/6/601/pdf-vor |
